Fatima conducted an experiment where she asked people to estimate the temperature of glasses of water. She recorded how far the estimates were from the actual temperatures, using positive values for guesses that were too high and negative values for guesses that were too low. Her results are in the table below.
Estimate -−minus actual temperature (\degree\text{C})(°C)left parenthesis, degree, start text, C, end text, right parenthesis
Person A Person B Person C
-3−3minus, 3 444 888
-1−1minus, 1 -4−4minus, 4 -2−2minus, 2
000 222 555
222 -3−3minus, 3 111
What is the mean value in Fatima's results?

Answers

Answer 1

The mean value is the sum of the temperature values divided by the total frequency. Hence, the mean value in Fatima's temperature result is -0.75°C

Given the data :

Person 1 :

-3, - 1, 0, 2,

Sum = (-3 + (-1) + 0 + 2) = - 2

Person 2 :

4, -4, 2, - 3

Sum = (4 + (-4) + 2 + (-3)) = - 1

Person 3 :

8, - 2, 5, 1

Sum = (8 + (-2) + 5 + 1) = 12

Mean value = (Total sum ÷ Frequency)

Mean value = [(-2 + (-1) + 12) ÷ 12]

Mean value = - 9 ÷ 12 = - 0.75

Therefore, the mean value of the result is 0.75°C

Learn more : https://brainly.com/question/25242892


Related Questions

Is it possible to list all the fractions between 2 and 3? Explain.

Answers

Answer: No

Step-by-step explanation:

There are infinitely many numbers. Numbers so big that they are beyond our comprehnsion. Numbers can also be infinitly small. A fraction is something less than a whole. So the answer is no you can't list them all.

please help picture below

Answers

the answer is 5 and 0

(-5) + 5 = 0

Y=5x+b

how do i solve for B?

Answers

Answer:

Y=5x+b

y-5x=b

B= y-5x

hope this helps

Answer:

b = y-5x

Step-by-step explanation:

y =5x+b  

Step 1- Cancelation minus or add the numeric first both side then variable numbers, then variables then exponents ^2 last.

In this case if we were asked to find x we would divide both sides by 5. But we are not asked that and instead asked to find b so we just apply and keep 5x together through add or subtraction.

For exponents we sqrt both sides. But this equation doesnt show any exponents so we stop at -5 each side.

y-5x=b

Step 2 - keep doing to isolate b we have no more to change other than reverse to show b first.

b = y-5x

Simplify.

15 20 24+20

Answers

Answer:

-5 divide by 28

Step-by-step explanation:

so the question supposed be " 15-20 divided by 2(4) + 20

15-20 which is also 15 + (-20)= -5

2(4)=8, 8+20=28

so it can simplify into -5 / 28

(hope it helps :)

Help! evaluate this number

Answers

Answer:

-12×3 = -36.............

Parallel to the graph of y = 7x - 6 with y-intercept (0,3)

Answers

Answer:

The graph of the lines is given in the picture below:

Which two numbers are 4 units from -2?

Answers

Answer:

-6 and 2

Step-by-step explanation:

look left and right on number line. count 4 places over going both ways

PLEASE HELP 20 points!

Answers

The answer is y = 0.02 (0.05)^x

Exponential functions follow the form y = ab^x.

a is the y intercept when x is at 0. Because the last part, b^x will just be 1 since any number raised to 0 is 1.

b is the multiplier, and it’s raised to how many times it’s being multiplied.

So like you said, it’s being multiplied by 0.5. b = 0.05. And a=0.02.

Solve the equations for x:


a−(a+b)x=(b−a)x−(c+bx), if b≠ 0


I need the answer for x if b≠ 0

Answers

Answer:

x=(a+c)/b

Step-by-step explanation:

a−(a+b)x=(b−a)x−(c+bx)

a-ax-bx=bx-ax-c-bx

-ax+ax-bx=-c-a

0-bx=-c-a

x=-(a+c)-/b

x=(a+c)/b and b≠ 0

The tape diagram represents an equation.

Answers

Answer:

y² = 7

Step-by-step explanation:

I got ace in a week i felt so happy i wanna give someone branliest

2+2

Answers

Answer:

4

Step-by-step explanation:

2 plus 2 equals 4 lmk if you need more help

Answer:

4

Step-by-step explanation:

QUESTION 12
Maria bought 6 books for a total of $360.00. Math books cost $80.00 and science books cost $50.00. How many science books did she buy? Your
answer should be a number only.

Answers

Answer: 4 science and 2 math books

Step-by-step explanation:

Let M and S stand for the numbers of math and science books.

We know that M+S = 6 books

and M*80 + S*50 = $360

Rearance the first: M = 6-S

Use this definition of M in the second equation:

(6-S)*80 + S*50 = $360

480-80S + 50S = 360

-30S = - 120

S = 4

Use S=4 in the first equation (M=6-S) to find the number of math books, 2.

Check to see if there number work:

4*($50)= $200

2*($80)= $320160

Total is $360. It works.

i need the answer to f(x)=2x+3

Answers

I don’t really know what you mean here but i guess you mean f(x)=2x+3=0

In that case:
F(x)=2x+3=0
Subtract 3 from both sides:
F(x)=2x=-3
Divide both sides by 2:
F(x)=x=-3/2.

The price of a cup of coffee was $2.40 yesterday. Today, the price rose to $2.55. Find the percentage increase.

Answers

Answer:

16 percent

Step-by-step explanation:

Answer:

Step-by-step explanation:

2.40÷2.55=94%

-4x + 2x + 3x + 8
Asap

Answers

Answer:

x + 8

Step-by-step explanation:

1. To simplify this expression, we have to combine like terms.

(-4x + 2x + 3x) + (8)(-2x + 3x) + (8)x + 8

Therefore, the answer is x + 8.

why did lil uzi vert get a diamond in his head

Answers

because he think he cool or whateva

Answer:

Because he thought it would make him stand out.

Find the slope of the line that contains the following pair of
points:
(-3,-4) and (3,-2).

Answers

Answer:

1/3

Step-by-step explanation:

gradient or slope = m

m = change in y ÷ change in x

= (-4 - -2) ÷ (-3 - 3)

= (-4 + 2) ÷ (-3 - 3)

= -2 ÷ -6

= 1/3

Can someone pls help me

Answers

Answer: help what?????

Step-by-step explanation:


a. How are the functions y = x and y = x + 4 related? How are their graphs related?

Answers

Step-by-step explanation:

gggggggggggggiiiiiiiiiiii

factor (x-3)²+4(x-3)​

Answers

Answer:

[tex] {(x - 3)}^{2} + 4(x - 3) \\ = (x - 3)((x - 3) + 4) \\ (x - 3)(x - 3+ 4) \\ = (x - 3)(x + 1)[/tex]

(x - 3) is common factor

Imagine you are multiplying or dividing each term by the common factor

[tex] {(x - 3)}^{2} + 4(x - 3) \\ \frac{{(x - 3)}^{2}}{(x - 3)}+(x-3)4\frac{(x - 3)}{(x - 3)}\\(x-3)((x-3)+4)[/tex]

HELP WITH ANGLES AGain LOL

Answers

Answer: 180
Explanation: just ask me for it

I need help to fill in the blank for how to solve the equations with the brackets.

“When you see the brackets inside an equation, you’ll need to get rid of the brackets (to access the terms inside), which means you’ll need to ______________ the equation.”

What word is missing that goes with the math statement?

Answers

Answer:

take out or aluminate i think

Step-by-step explanation:

For brainily please help

Answers

Answer:

Yes

Step-by-step explanation:

[tex]\sf 7-5x=-43[/tex]

Answers

Answer:

[tex]\sf\longmapsto \: x = 10[/tex]

Step-by-step explanation:

Subtract 7 from both sides:

7−5x−7=−43−7

Simplify:

−5x=−50

Divide both sides by −5:

[tex]\sf\longmapsto \: \frac{ - 5x}{ - 5} = \frac{ - 50}{5} [/tex]

[tex]\sf\longmapsto \: x = 10[/tex]

[tex]\boxed{\sf Answered \: By\: Subhash} [/tex]

[tex]\boxed{\sf Answered \: By\: Subhash} [/tex]

[tex]\boxed{\sf Good\: luck \: for \: your \:assignment} [/tex]

Answer:

x=10

Step-by-step explanation:

[tex]7-5x=-43[/tex]

[tex]7-5x-7=-43-7[/tex] Subtract

[tex]-5x=-50[/tex]

[tex]\cfrac{-5x}{-5}=\cfrac{-50}{-5}[/tex] Divide

[tex]x=10[/tex]


HELP

Which expression should appear on Line 3?

800 + 24 + 12

800 +240 + 12


800 + 600 + 12

80 +240 + 12

Answers

Answer:    800  +   240  + 12  

Step-by-step explanation:

Line 3 = (200 × 4) + (60 × 4) + (3 × 4)      [multiply the terms in the brackets]

          =  800  +   240  + 12  

Answer:

Refer to the attachment

I REALLY NEED HELP ON THIS Correct Answer please

Answers

A triangle’s three angles sums up to 180 degrees. So the first thing you should do is subtract 50 from 180

180 - 50 = 130

Since it’s an isosceles triangle, ∠A and ∠B are of equal size. So we divide the result, 130, by two. This would give us the m∠A, which is 65.

130/2 = 65

Question 1 (6 points)
If given the following situation;
At a fair, each person can spin two wheels of chance. The first wheel has the
numbers 1, 2, and 3. The second wheel has the letters A and B.
Explain how you know if this game of chance is based on simple or compound
probability.

Answers

Answer

im struggling too ;c

Step-by-step explanation:

Choose the algebraic expression that matches the word phrase below.

the quotient of x and 10

Answers

Answer:

x ÷ 10

..,.................

Rewrite the equation below so that it does not have fractions

2/3x-5=3/4

Answers

Answer:

Step-by-step explanation:

The best way to do this problem is to find the lowest common denominator.

2/3 : 3*2/(3*3)

3/4 : 3*3 / 3*4

Notice what you have done. You have multiplied both denominators by something that gets rid of the denominators, or will when you multiply by 4 * 3 = 12

So multiply the equation by 12

(2/3 x- 5  = 3/4 ) 12

8x - 60 = 9                                 Add 60 to both sides

8x - 60 = 9                                 Combine

8x = 69                                       Divide by 8

x = 69/8

x = 8  5/8

The graph represents the data cost for monthly Internet service for a cell phone.

On a coordinate plane, a graph titled Cell Phone Internet Service shows Gigabytes Used on the x-axis and Monthly Cost in dollars on the y-axis. A piecewise function has 3 lines. The 1st line has a closed circle at (0, 15), continues horizontally at y = 15, then has a closed circle at (2, 15). The 2nd line has an open circle at (2, 20) and then continues up to a closed circle at (6, 40). The 3rd line has an open circle at (6, 50) and then continues horizontally at y = 50.
Which function, C(x), represents the monthly cost in dollars in terms of x, the number of gigabytes used in a month?

C(x) = StartLayout enlarged left-brace 1st Row 1st column 15, 2nd column 0 less-than-or-equal-to x less-than-or-equal-to 2 2nd Row 1st column 5 x + 10, 2nd column 2 less-than x less-than-or-equal-to 6 3rd Row 1st column 50, 2nd column 6 less-than x EndLayout
C(x) = StartLayout enlarged left-brace 1st Row 1st column 15, 2nd column 0 less-than-or-equal-to x less-than 2 2nd Row 1st column 5 x + 20, 2nd column 2 less-than-or-equal-to x less-than 6 3rd Row 1st column 50, 2nd column 6 less-than-or-equal-to x EndLayout
C(x) = StartLayout enlarged left-brace 1st Row 1st column 15x, 2nd column 0 less-than-or-equal-to x less-than-or-equal-to 2 2nd Row 1st column 20 x + 5, 2nd column 2 less-than x less-than-or-equal-to 6 3rd Row 1st column 50 x, 2nd column 6 less-than x EndLayout
C(x) = StartLayout enlarged left-brace 1st Row 1st column 15x, 2nd column 0 less-than-or-equal-to x less-than 2 2nd Row 1st column 5 x + 10, 2nd column 2 less-than-or-equal-to x less-than 6 3rd Row 1st column 50 x, 2nd column 6 less-than-or-equal-to x EndLayout

Answers

Answer:

C(x) = 15            0 ≤ x ≤ 2

C(x) = 5x + 10    2 < x ≤ 6

C(x) = 50           x > 6

Step-by-step explanation:

Its A

Answer:

c

Step-by-step explanation:

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