Identify the variance and the standard deviation of the given data set. Round to the nearest hundredth.
{56, 57, 34, 50, 40, 61, 50, 39}

Answers

Answer 1

Answer:

82.73  v      

9:10 s

Step-by-step explanation:


Related Questions

NEED HELP ASAP TAKING TEST A refrigeration unit at a restaurant is supposed to be kept at 40°F. An inspector would like to test the hypotheses H Subscript 0 Baseline: mu = 40 versus H Subscript alpha Baseline: mu not-equals40 where μ = the true mean temperature for all times of the day. A 98% confidence interval based upon a random sample of 40 temperatures is 40.5 degrees to 42.1 degrees. Using the interval, what decision should be made?

The null hypothesis should be rejected at the Alpha = 0.01 level.
The null hypothesis should be rejected at the Alpha = 0.02 level.
The null hypothesis should not be rejected at the Alpha = 0.05 level.
The null hypothesis should not be rejected at the Alpha = 0.10 level.

Answers

Answer:

,, the null hypothesis should be rejected at the alpha equals 0.02 level

Nadia compares the weights, in grams, of some apples and oranges she find the median abs interquartile range of the weights.

Answers

Answer:

Apple

Orange

Step-by-step explanation:

Apple has the greater median with a median value of 150 which is more than that of orange at 130

The sample with the greater variability is the orange sample as the interquartile range value of 11 is greater Than 8 for Apple.

Yes it is possible, because of the greater variation on weight shown by the sample of oranges, then it could be possible.

Clay surveys members of his class to find out how many televisions they have in their homes. The thirteen responses he received are shown in the table. Which statement is true?


A) The mean is less than the mode.
B) The mean is less than the range.
C) The mean is greater than the range.
D) The median is greater than the mode.

Answers

Answer:

B, the mean is less than the range

Step-by-step explanation:

mean is 3.38 (rounded)

mode is 3

median is 3

range is 5

The mean is 3.38 and the range is 5, So the mean is less than the range. Option B is the correct one.

What are mean?

The mean is the average value which can be calculated by dividing the sum of observations by the number of observations

Mean = Sum of observations/the number of observations

Mean = [tex]\frac{1+5+2+3+4+6+3+1+3+4+3+5+4}{13}[/tex]

The mean is 3.38 (rounded)

Median represents the middle value of the given data when arranged in a particular order.

So, the Median would be 3.

Mode is that number that appears most frequently in the given set of data.

So, the Mode would be 3.

The range of a given set of data is the difference between the largest value and the smallest value.

So, the range would be 5

Learn more about mean and median;

https://brainly.com/question/17060266

Help meeeeeeee!!!!!!!

Answers

c sorry if i’m wrong btw

Answer:

the answer is c

Step-by-step explanation:

If u add the values of the dots on set A it would be greater than set B.

What is the value of x?

Answers

Answer:

3

Step-by-step explanation:

Please help im confused on the last question on my warm up!

Answers

Answer:

Choice B: Only (-1,-5)

Step-by-step explanation:

With this one, first the equation needs to be reduced into point-slope format.

y+5=2(x+1)

Distributive Prop.

y+5=2x+2

Carry over the 5 to the opposite side.

y=2x-3

Now, with the point slope form, it makes it easier to plug in the question choices to find which if any are correct.

Choice A: X is 5; Y is 10

y=2x-3

y=2(5)-3

y=10-3

y=7

This does not give a y value of 10, so it is false.

Choice B: X is -1; Y is -5

y=2(x)-3

y=2(-1)-3

y= -2-3

y= -5

This does give a y value of -5, so it is true. Choices C and D are therefore false as well, since only Choice B works.

Solve n/3+ (-4) = -2. Plz im in an exam

Answers

N=6

N/3-4=-2
N-12=-6
N-6+12
N=6

Jordan wants to split up his socks and shoes into groups. If he has 6 pairs of shoes and 14 pairs of socks, how many groups must he create so he has an equal number of pairs of shoes and pairs of socks?

Answers

Answer:

i amm not sure

Step-by-step explanation:

The number of groups Jordan must create so he has an equal number of pairs of shoes and pairs of socks is 2.

What is HCF?

The highest common factor (HCF) is discovered by identifying all common factors of two integers and then picking the greatest one. For example, the common factors of 8 and 12 are 1, 2, and 4. The greatest common factor is four.

Jordan wants to split up his socks and shoes into groups. If he has 6 pairs of shoes and 14 pairs of socks. Therefore, she can divide the pair of socks and shoes only into groups of 2, because two is the HCF of 6 and 14.

Hence, the number of groups Jordan must create so he has an equal number of pairs of shoes and pairs of socks is 2.

Learn more about HCF:

https://brainly.com/question/17240111

#SPJ2

due to day help a lot of pionts​

Answers

Answer:

6 yd

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

A new test is developed to test for a certain allergy, giving "positive" or "negative" results to indicate that a person does or does not have the allergy. For a person who has the allergy, the test will give a positive result 82% of the time and a negative result (false negative) 18% of the time. For a person who does not have the allergy, the test will give a positive result (false positive) 10% of the time and a negative result 90% of the time. A study included a population of 10,000 people, and 1% of those studied where known to have the allergy. Fill in the missing values in the table below, and complete the statements that follow. Round the percentage to the nearest tenth, if necessary.

Answers

Answer:

the first blank is 82, the second blank is 8,910. I got that third blank wrong and it should be 7.1 I think. and the last block is should not. to find the third box all you need to do is:82+990=1,072 then divide 82 by 1,072 and round to the nearest tenth

Answer:

828,9107.6Should not

A study by the department of education of a certain state was trying to determine the
mean SAT scores of the graduating high school seniors. The study found that the
mean SAT score was 447 with a margin of error of 21. Write a confidence interval for
the true mean SAT score of the graduating high school seniors.

Answers

Answer:

(426 ; 468)

Step-by-step explanation:

Confidence interval :

Mean score ± margin of error

Margin of Error = 21

Mean SAT score = 447

Hence,

447 ± 21

Lower boundary = 447 - 21 = 426

Upper boundary = 447 + 21 = 468

(426 ; 468)

The diameter, D, of a sphere is 16.6 m. Calculate the sphere's volume, V. Use the value 3.14 forn, and round your answer to the nearest tenth. (Do not round any intermediate computations.) 3 Х ?​

Answers

Answer:

[tex]2395.1\:\mathrm{m^3}[/tex]

Step-by-step explanation:

The volume of a sphere is given by [tex]4\pi r^3[/tex]. Since a radius is half a diameter, the radius of the sphere is [tex]\frac{16.6}{2}=8.3[/tex].

Substituting values, we have:

[tex]V=\frac{4}{3}\pi (8.3^3)\approx \boxed{2395.1}[/tex]

what is the surface area of the cylinder with height 8 ft and radius 3 ft round your answer to the nearest thousand.​

Answers

Answer:

207.24

Step-by-step explanation:

[tex]S_{surface} = S_{side} + 2*S_{base} \\S_{side} = 2\pi RH\\ = 2*3.14*3*8=150.72\\S_{base} = \pi R^{2} = 3.14 * 3^{2} = 28.26\\S_{surface} = 150.72 + 2* 28.26 = 207.24[/tex]

PLEASE HELP!!!!!!!!!!!

Answers

Its the red one bc its between 1 and 12

can someone pls help i really don’t know what to do i keep getting it wrong i divide 12000 by 0.08 and get 150000 yet it’s still wrong SOMEONE ANYBODY PLSS HELPPP

Answers

Answer:

after tax the car is $12,960

Step-by-step explanation:

to find this first you need to find 8% of 12,000 which is 960

8/100 * 12,000/1=960

now add 960 to the original and that is your answer

Answer:

Step-by-step explanation:

Yes, the answer is 150000 , maybe its asking u to put it in some form.

85.000

/ 120.00

--------------                  

 17200/0.08            (Plus The Sales Tax)

  (21500)

helppppp me its for a grde

Answers

Answer:

567.7

Step-by-step explanation:

This is the correct answer because 7.4 would be the radius & 9.9 would be the height.

V=πr2h

3=π·7.42·9.9

3≈567.7

Hope this helps please mark as brainliest! Thx!‍‍➕➖➗

A kids toy ball is in the shape of a sphere and has a diameter of 9 millimeters. What is the volume of the toy ?

Answers

Answer:

381.7 ... hope this helped

Step-by-step explanation:

V=

4

3

π

r

3

d=

2

r

Solving forV

V=

1

6

π

d

3

=

1

6

π

9

3

381.70351

Answer:

381.7 mm cubed

Step-by-step explanation:

To find the volume of a sphere is V=4 /3πr³

----------

Since they give you the diameter, you have to divide by 2, so:

9 ÷ 2 = 4.5

When you plug in 4.5, you get you answer.

---------

Have a good day :)

(5/10)^4 in exponential form

Answers

Answer:

[tex] 6.25 \times {10}^{ - 2} [/tex]

Step-by-step explanation:

[tex] { \bigg( \frac{5}{10} \bigg) }^{4} \\ \\ = {(0.5)}^{4} \\ \\ = 0.0625 \\ \\ = 6.25 \times {10}^{ - 2} [/tex]

Answer:

6.25 x 10-2

Step-by-step explanation:

HELP PLS
Which graph represents the equation y = x2-5?

Answers

Y= x^2
Are you trying to graph the problem to??

What is 2/3-1/2 equal to (fraction form)

Answers

Answer:

[tex]\frac{1}{6}[/tex]

Step-by-step explanation:

Hope this helps <3

Answer:

=1/6

Step-by-step explanation:

First of all you have to find the lcm of the two denominators which are, 3 and 2

Lcm of 2 and 3 =6

Then divide 6 by by the denominators and multiply by numerators, which gives you

(4-3) / 6

After solving the above, we then arrive at 1/6 as our answer.

e) The diagonal of square A, marked off by the red stars, is where the concession stand is located. A local high school band is performing at the outdoor theater on a summer evening. The band has a school banner that is 40-feet long, and band members would like to hang it across the concession stand to let people know they are performing. Estimate the length of the concession stand to determine if the school banner can fit across the length of the concession stand. Show your work and explain your reasoning.

Answers

Answer:

60 ft long bc that would leave 10ft on each side of the banner...

Step-by-step explanation:

Hopes this helps. Mark as brainlest plz!

Answer:

Solution given:

length [l]=breadth [b]=40ft

Now

length of concession banner[h]=?

we have

perpendicular [p]=base[B]=40ft

by using Pythagoras law

h²=p²+b²

h²=40²+40²

h=√3200

h=40√2

So

the length of the concession stand to determine if the school banner can fit across the length of the concession stand is 402 ft or 56.57ft

HELP MEEEEEEEE PLEASE

Answers

Answer:

B. 5/16

Step-by-step explanation:

Multiply each side by the reciprocal of 2/5 to solve for x

(2/5)(1/8)=x

2/16=x

If F(x) = 4(x-8) + 2, what is the value of F(2)?​

Answers

Ur answer would be 20!!
I think it’s 15 not sure though

Help me pleaseeee with this question

Answers

Answer:

B. 7

Step-by-step explanation:

Count every number less than 70 (count the leaf plot numbers if that helps).

62,62,63,64,54,56,56 = 7 drivers that travel less than 70 mph

Sergey is mixing cement, sand, and stone to make concrete. In order to make 8 buckets of concrete, he must use 3 1 4 buckets of sand. If he has plenty of cement and stone, how many buckets of concrete can Sergey make with 9 3 4 buckets of sand?

Answers

So first you beg your mom to seduce your teacher then all you needa do is sit back in that class

Suppose that among all U.S. Students, 80% have gone to an amusement park and 45% have gone to a beach. Only 15% have done neither. If you select a student at random, what is the probability that the student has gone to the beach but not to an amusement park

Answers

Answer:

5%

Step-by-step explanation:

Let x represent the percentage of people that have gone to both the park and the beach.

The percentage of people that have gone only to the amusement park = 80% - x% = 80 - x

The percentage of people that have gone only to the beach = 45% - x% = 45 - x

Therefore:

100% = (80 - x) + (45 - x) + (x) + (15)

100 = 80 + 45 + 15 -x - x + x

100 = 140 - x

x = 140 - 100

x = 40%

Therefore 40% of the students have gone to both the park and the beach.

The probability that the student has gone to the beach but not to an amusement park = 45% - 40% = 5%

Find cos B using SOHCAHTOA

Answers

The answer is 20 / 25

How do you divide fractions?

Answers

Answer:

I'm about to share an image with you that explains how to divide fractions!!

Answer:

KCF (Keep Change Flip) 3/4 divided by 2/3. Keep 3/4 change the division sign to mulitplication and flip the 2 and the 3 to an improper fraction of 3/2 and then solve. Just remember KCF and you'll be good. I used to be trash at fractions and now I'm very good thanks to KCF.

Step-by-step explanation:

Q4. Which system of inequalities describes the graph?

Answers

Answer:

Step-by-step explanation:

Help I don’t understand this appreciate any help

Answers

Theres nothing attached..
Nothing attached to the question
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