What is the variance and standard deviation for profit? Fill out the table below to help you calculate these values. Use the expected value that you found in part c in your calculations. Round any decimal values to two decimal places. x f(x) x - E(x) (x - E(x))2 (x - E(x))2⋅f(x) -100 0.05 -50 0.15 0 0.30 50 0.35 100 0.12 200 0.03 Var(x)= σ=
What is the variance and standard deviation for profit? Fill out the table below to help you calculate these values. Use the expected value that you found in part c in your calculations. Round any decimal values to two decimal places. x f(x) x - E(x) (x - E(x))2 (x - E(x))2⋅f(x) -100 0.05 -50 0.15 0 0.30 50 0.35 100 0.12 200 0.03 Var(x)= σ=
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.6: Regression And Median-fit Lines
Problem 5PPS
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Question
100%
c.) What is the
The expected value for profit is 23
|
x |
f(x) |
x⋅f(x) |
|
-100 |
0.05 |
|
|
-50 |
0.15 |
|
|
0 |
0.30 |
|
|
50 |
0.35 |
|
|
100 |
0.12 |
|
|
200 |
0.03 |
|
E(x)=
d.) Based on your expected value from part c, do we expect the business to earn a profit for the year?
e.) What is the variance and standard deviation for profit? Fill out the table below to help you calculate these values. Use the expected value that you found in part c in your calculations. Round any decimal values to two decimal places.
|
x |
f(x) |
x - E(x) |
(x - E(x))2 |
(x - E(x))2⋅f(x) |
|
-100 |
0.05 |
|
|
|
|
-50 |
0.15 |
|
|
|
|
0 |
0.30 |
|
|
|
|
50 |
0.35 |
|
|
|
|
100 |
0.12 |
|
|
|
|
200 |
0.03 |
|
|
|
Var(x)=
σ=
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