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The average price of a college math textbook is $179 and the standard deviation is $25. Suppose that 10 textbooks are randomly chosen. Round all answers to 4 decimal places where possible.

Answer :

ogbe2k3

Answer:

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

ayfat23

Answer:

[tex]α²ₓ=7.9056[/tex]

Step-by-step explanation:

The average price of a college math textbook = $179

the standard deviation given= $25

Supposed number of textbooks =10

∴ [tex]n=10[/tex]

mean value= 179

μ=161

[tex]αₓ=α/√n[/tex]

[tex]α²ₓ=7.9056[/tex]

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