KariSupreme
12.01.2021 •
Mathematics
HELP ME PLS! Parallel lines p,q, are r are cut by transversal t which of these describe how to find the value of x
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Ответ:
σₓ² = 7.9056
Step-by-step explanation:
Recall from the example given,
The average price of a math textbook =$179
The standard deviation =$25
The mean= 179
Standard deviation = 25
n =number of textbook randomly chosen which is 10
n=10
Then
Mean µ = 161
σ = 25
σₓ = σₓ/√n
= 25/√10
Therefore. σₓ² = 7.9056