40 points!! please do not plagiarize, I need this to be original :D
Erik is performing a marble experiment in math class. His teacher places an equal number of black, red, and white marbles in a bag. Then, Erik randomly takes out a marble, records the result, and puts the marble back in the bag. Each of the first four times Erik takes out a marble, he gets a black marble.

A. What is the theoretical probability of Erik picking a black marble next time? Based on Erik's results, what is the experimental probability of Erik picking a black marble next time?
B. Explain the difference between the two probabilities you found in part A.
C. What is the theoretical probability and likelihood of getting four black marbles in a row?

Answers

Answer 1

Answer:

Every one of us would have encountered multiple situations in life where we had to take a chance or risk. Depending on the situation, it can be predicted up to a certain extent if a particular event is going to take place or not. This chance of occurrence of a particular event is what we study in probability. In our everyday life, we are more accustomed to the word ‘chance’ as compared to the word ‘probability’. Since Mathematics is all about quantifying things, the theory of probability basically quantifies these chances of occurrence or non-occurrence of certain events. In this article, we are going to discuss what is probability and its two different types of approaches with examples.


Related Questions

What is the solution to the system?

A. (0,3)
B. (1,3)
C. (-3,1)
D. (1,-1(

Answers

Answer:

B. (1,3

Step-by-step explanation:

to know the system of equations all you have to look for is where the lines intersect.

B is the correct answer

i need help 8th grade math

Answers

Answer:

the slope shows that the average rating increased 0.4 points per month

Step-by-step explanation:

the equation is written in slope-intercept form. aka y=mx+b. m represents the slope and b represents the y-intercept. therefore in the equation y=0.4x+3 the slope is 0.4

hope this made sense and helped you for future problems :)

The slope shows that the average rating increased 0.4 points per month

Compare the volume of these two shapes.

left object volume > right object volume
not enough information given
right object volume < left object volume
left object volume =right object volume

Answers

Answer:

left object volume = right object volume

it’s the forth option

Angle PQR and angle TQV are vertical angles. The measures of the two angles have a sum of 100o. Write and solve an equation to find x, the measures of angle TQV.

Answers

Answer:

I'm not certain what the sum is, so I will teach you how to solve.

Step-by-step explanation:

As the question states, angle PQR and TQV are vertical angles, so they have to be the same measure. Just divide the sum by 2 and you get the answer.

If there were more context, I would totally edit my answer!

Good Luck!!!

A decade ago, the average class size at Kingwood Middle School was 24 students. Now it is 25% smaller. What is the average class size currently?

Answers

Answer:

6

Step-by-step explanation:

1. Solve five times two and one sixth.

a.seven and one sixth
b.seven and seven sixths
c.ten and one sixth
d.ten and five sixths

2. Solve seven times three and one fifth.

a.twenty two and one fifths
b.twenty two and two fifths
c.twenty two and three fifths
d.twenty two and four fifths

3. Solve two and one third times two and three fourths.

a.four and three twelfths
b.six and five twelfths
c.seven and five twelfths
d.eight and three twelfths

4.Solve three and one half times one and two thirds.

a.three and two sixths
b.four and two sixths
c.five and five sixths
d.six and five sixths

5.Solve six and two sixths times one and one half.

a.six and two twelfths
b.eight and six twelfths
c.nine and six twelfths
d.ten and two twelfths

6. Solve one and three fourths times two fourths.

a.fourteen sixteenths
b.fifteen sixteenths
c.seventeen sixteenths
d.eighteen sixteenths

7. Solve seven times four and five eighths.

a.twenty eight and three eighths
b.twenty eight and five eighths
c.thirty two and three eighths
d.thirty two and five eighths

8. Solve five and four tenths times two. (2 points)

a.ten and four twentieths
b.ten and eight twentieths
c.ten and four tenths
d.ten and eight tenths

9. Solve two and one third times four fifths. (2 points)

a.four sixths
b.twenty eight fifteenths
c.twenty seven fifteenths
d.twenty eight sixths

10. Solve five and two thirds times three fourths (2 points)

a.three and eleven twelfths
b.four and one twelfth
c.four and three twelfths
d.five and one twelfth

Answers

Please give brainliest! I put a lot of effort

Answer:

1. D) ten and five sixths

2. B) twenty two and two fifths

3. B) six and five twelfths

4. C) five and five sixths

5. C) nine and six twelfths

6. A) fourteen sixteenths

7. C) thrity two and three eighths

8. D) ten and eight tenths

9. B) twenty eight fifteenths

10. I'm pretty sure the answer is 4 1/4 but I don't see that answer choice

Step-by-step explanation:

1. 5 x 2 1/6 = 5/1 x 13/6 = 65/6 = 10 5/6

2. 7 x 3 1/5 = 7/1 x 16/5 = 112/5 = 22 2/5

3. 2 1/3 x 2 3/4 = 7/3 x 11/4 = 77/12 = 6 5/12

4. 3 1/2 x 1 2/3 = 7/2 x 5/3 = 35/6 = 5 5/6

5. 6 2/6 x 1 1/2 = 38/6 x 3/2 = 114/12 = 9 6/12

6. 1 3/4 x 2/4 = 7/4 x 2/4 = 14/16

7. 7 x 4 5/8 = 7/1 x 37/8 = 259/8 = 32 3/8

8. 5 4/10 x 2 = 54/10 x 2/1 = 108/10 = 10 8/10

9. 2 1/3 x 4/5 = 7/3 x 4/5 = 28/15

10. 5 2/3 x 3/4 = 17/3 x 3/4 = 51/12 = 4 1/4

1. d
2.b
3.b
4.c
5.?
6.a?
7.c
8.?
9.b
10.?

Question 10
I need help

Answers

Answer:

its 8 trust me on this

Step-by-step explanation:

:)))))

Answer:

can u please friend me?

Step-by-step explanation:

Help me please......

I don't understand this

Answers

Answer:

If you use the area formula it should be really simple.

Step-by-step explanation:

Have you been taught base x height?

Answer:

To find the area, you use a specific formula for the shape.

For the squares and rectangles, multiply the length by the width.

For a triangle do base times height divided by 2.

I would suggest asking your teacher for help with the formula.

Best of Luck :)

30 POINTS!!!! PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! GOOD ANSWERS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Using the box plot you drew for the following data set, describe how the data is dispersed: 22, 35, 18, 30, 37, 20, 40, 18, 38, 38, 23, 19, 27, 31, 34.

Answers

Answer:

The data is negatively skewed.

Step-by-step explanation:

When the median line is closer to the right side of the box plot, the data is negatively skewed. Another way to know is if the mean is less than the median; it looks like the median on your box plot is 30, and I calculated the mean of the data set to be 28.7.

The diameter of a dime is 17.9 millimeters. What is the area of one side of the coin? Show your work

Answers

Answer: I think 612 millimeters

Answer:

251.65 Millimeters rounded to the hundredths place.

Step-by-step explanation:

The formula for the area of a circle is A=π×r^2.

Step 1: Find r, or the radius, which is half the diameter. In this case, it is 8.95.

Step 2: Square the radius that you get. In this case, the answer is 80.1025.

Step 3: Multiply the past number by π on your calculator. Some teachers allow 3.14 but be certain that your teacher allows it. In this case, π×80.1025=251.649425534

Step 4: You've got your answer! Hope this helps!

Mrs. Chevalier’s class is reviewing by playing a math game. Mrs. Chevalier randomly selects an integer from the set of integers -15 to 15.

Part A

What is the probability that Mrs. Chevalier names a positive integer?

Part B

Explain how you determined your answer.

Answers

Answer:

(15/31) ?

Step-by-step explanation:

|-15| = 15

15+15+1 (for 0) = 31

1 through 15 are positive, so 15 of the 31 could be positive, or 15/31

Sorry, could be wrong, but I think it's right

Part A Answer: The probability that Mrs. Chevalier names a positive integer is a 50% chance.

Part B: Numbers from -15 to 15 is thirty-one total numbers including zero, but zero is neither negative nor positive, so it doesn’t really count in this situation unless the instructions describe it as positive. Without the zero, it is thirty numbers in total, with half of them being negative, and half of them being positive, which can also be said as 50%. You can find this answer by dividing 15 by 30, which is 1/2, or 50%.

PLEASE HELP ASAP!!
[tex]\frac{3}{4}[/tex] t = -9 what does t equal?

Answers

Answer:

t=-12

Step-by-step explanation:

3/4(t)=-9

divide by 3/4 on both sides, and when you divide by a fraction, you actually multiply the reciprocal of the fraction instead of trying to somehow divide.

Soooooo... the reciprocal of 3/4 is 4/3, right?

t= -9 * 4/3

t=-12

Note: Btw, if you didn't know you don't have to wait for an answer from brainly community lol, there are many good online calculators (example being https://www.symbolab.com/), that will show u a step by step solution to algebraic problems in an instant.

Just don't use it for cheating :P

Answer:

-12

Step-by-step explanation:

Best Buy was having a sale on bluetooth speakers. They offered a 40% discount on a JBL speaker
that was originally priced at $450. After the sale, the discounted price of the speaker was increased by
40%. What is the new price of the speaker after this increase?

Answers

The answer is 450 because they are just going back to the original price after the sale

the answer is C............................

At Outfield Sports Shop, Brandon is deciding which set of equipment to buy. He usually only plays with standard baseballs, but he wants to get some plastic baseballs to use when playing with his younger cousins. The store offers a starter set with 2 plastic balls and 5 standard balls, and a deluxe set with 4 plastic balls and 10 standard balls. Do the starter set and deluxe set have the same ratio of plastic baseballs to standard baseballs?

no links please

Answers

Answer:

Yes.

Step-by-step explanation: The Starter Set's ratio is 2:5 and the Deluxe set's ratio is 4:10. . You need to multiply the numerator and the denominator of the Starter Set by 2 and you will see that the ratio 2:5 is equivalent to ratio 4:10.

Ill mark brainilist or whatever, just answer please fast. Need this done asap

Answers

Answer:

true

Step-by-step explanation:

true.

plug in and the statement is true

How many 12-cup servings are in 94 cups of juice?

Answers

8 hope it helps just divide 12 from 94
jus divide 94 and 12 and u will get ur answer 8

there is an image with the question.

Answers

The answer is J. 28x = 7

x = 7 gallons / 28 students
x = .25 gallons per student

please help
(a figure is made up of a square and two semicircles)

Answers

Answer:

73.132 is the perimeter

Step-by-step explanation:

The perimeter of the square is 32 because 8x4.

The perimeter of the semicircle is 20.566 and times by 2 as there are 2 is 41.132.

41.132 + 32 = 73.132

Two dams, when opened, release water at different rates. The following functions represent the amounts of water the dams release over t minutes:

Dam A

f(t) = 5t – 7t – 1

Dam B

g(t) = 3t 2 + 4t + 9

Which function represents the difference in the amounts of water released, h(t) = f(t) – g(t)?

h(t) = 3t 2 – 5t + 11t + 10
h(t) = 2t 2 – 11t – 10
h(t) = 5t – 3t 2 – 3t + 8
h(t) = 5t – 3t 2 – 11t – 10

Answers

Answer:

Step-by-step explanation:

Well g(t l

Answer:

D

Step-by-step explanation:

i think this is it. edge 6/24/21

Florence paid for a booth at a pet show to sell her handmade pet collars. If s is her total sales and c is the cost of her materials, both in dollars, then s–c–20 is her profit, in dollars. Florence made $415 in sales at the pet show and the materials cost her $50.
What is Florence's total profit?

Answers

Answer:

365

Step-by-step explanation:

Answer:

465

Step-by-step explanation:

im not sure

Which of the following phrases represents n ÷ 5?

the sum of five and a number
a number decreased by five
the quotient of a number and five
five divided by a number

Answers

C. The quotient of a number and five. Although five divided by a number might seem right it’s not because the variable is clearly in front of the five. I’m 99% sure that’s right

What is the Interquartile Range (IQR)?
1,4,4,5,5,5,6,6,7,7,7,8,8,9,11

Answers

the answer should be 2 lol

MATH SMARTIES I WILL GIVE BRAINLIEST PLEASE INCLUDE AN EXPLINATION MEANING THE WORK SO I CAN UNDERSTAND

Answers

Answer:  I think that x is the number of friends invited so 25 times x has to be less then 135 but why is there a six? its not anywhere in question.

Step-by-step explanation:

Answer:

Its C. x being the amount of friends she can bring and since the tickets cost 6.00 its 6x plus the food and candy (25).

Step-by-step explanation:

Helppp!!!!
Xxxxxxxxx

Answers

Answer:

C

Step-by-step explanation:

55+35= 90

180-90=90 which means

90/3 is 30.

Answer is C

A temperature of F degrees Fahrenheit is 5/9(F–32) degrees Celsius. According to weather records, the highest temperature ever recorded on the continent of Africa was 131 degrees Fahrenheit, in the country of Tunisia.
What was the highest temperature in degrees Celsius?

Answers

Answer:

131°F is 55°C!

Step-by-step explanation:

subtract 32 from 131, then multiply by .5556 (5/9)

131 - 32 = 99

99 × 5/9 = 55

hope this helps!

What is the area of a circle that has a radius of 10 in? Use 3.14 for π.

62.8 ft^2
31.4 ft^2
314 ft^2
1256 ft^2

Answers

Answer:

The answer is 314

Step-by-step explanation:

Have a nice day :)

Answer:

314 ft

Step-by-step explanation:

Which of the following statements is TRUE?

Answers

A is the answer because 0.75x0.75 is greater than just 75. The two on top is an exponent which means depending on how big the number is it doubles

A circle has a diameter of 26 units. What is the area of the circle to the nearest hundredth of a square unit?

81.68
530.93
2123.72
8494.87

Answers

Answer:

The answer is 530.93

Step-by-step explanation:

Have a nice day :)

Answer:

530.93

Step-by-step explanation:

Animal control picked up 42 animals off the streets last month. • Dogs made up – of the animals. • Cats made up of animals. • Horses made up the remainder of the animals. How many animals picked up last month were horses? 6 horses 7 horses 13 horses 1 horse

Answers

Answer:

well i think it is 7

Step-by-step explanation:

In a popular online role playing game, players can create detailed designs for their character's "costumes," or appearance. Micaela sets up a website where players can buy and sell these costumes online. Information about the number of people who visited the website and the number of costumes purchased in a single day is listed below.

196 visitors purchased no costume.
108 visitors purchased exactly one costume.
22 visitors purchased more than one costume.

Based on these results, express the probability that the next person will purchase more than one costume as a percent to the nearest whole number.

Answers

Answer:

7% chance

Step-by-step explanation:

the equation is (value/total value) x 100.

So I did (22/326) x 100

Which leaves you with 6.748 or about 7

P.S. 196 + 108 + 22 = 326

If you were confused about where that came from

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