Mean u = Ex P(X) = Variance o? = [Ex² P(X)] – µ² = Standard Deviation o = Is the estimation of math center correct?
Mean u = Ex P(X) = Variance o? = [Ex² P(X)] – µ² = Standard Deviation o = Is the estimation of math center correct?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Question
![9.The following table represents the probability of number of students working at math center. Verify it as a
probability distribution. Find the mean, variance, and standard deviation. The Math center is estimating that
on average 14 student will work in math center every day, is their estimation correct?
Number of students X
10
12
15
18 20
Probability
P(X) 0.18
0.34
0.17
0.18
0.13
Mcan μ Σ x P(X) =
Variance σ ΙΣΧ Ρ(Χ)] - μ .
Standard Deviation o =
Is the estimation of math center correct?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F56185a77-375d-4eda-ac1f-3086d4bc1537%2F036d6342-472e-4a7f-9687-7af7dc595306%2F87gbcd_processed.jpeg&w=3840&q=75)
Transcribed Image Text:9.The following table represents the probability of number of students working at math center. Verify it as a
probability distribution. Find the mean, variance, and standard deviation. The Math center is estimating that
on average 14 student will work in math center every day, is their estimation correct?
Number of students X
10
12
15
18 20
Probability
P(X) 0.18
0.34
0.17
0.18
0.13
Mcan μ Σ x P(X) =
Variance σ ΙΣΧ Ρ(Χ)] - μ .
Standard Deviation o =
Is the estimation of math center correct?
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