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Author Question: Suppose we select a supporter of US policy in Iraq, what is the probability that the person we ... (Read 26 times)

roselinechinyere27m

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on: Jun 24, 2018
Suppose we select a supporter of US policy in Iraq, what is the probability that the person we select is female?
 
  What will be an ideal response?

Question 2

The following values represent the annual snowfall, measured in inches, at a local ski resort over the past 10 years: 123, 87, 143, 133, 182, 176, 96, 104, 201, and 152.
 
  What is the mean snowfall over the past 10 years? What is the standard deviation?


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af

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Reply #1 on: Jun 24, 2018
Answer to Question 1

Event S: Supports US policy in Iraq, Event F: Female.

US Policy in Iraq
Gender Support Doesn't Support Row Total
Female 0.2438 0.2862 0.53
Male 0.3762 0.0938 0.47
Column Total 0.62 0.38 1.00

P(F  S) = P(F  S) / P(S) = 0.2438 / 0.62 = 0.393

Answer to Question 2

Mean = 139.7, standard deviation = 38.46.


roselinechinyere27m

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Reply 2 on: Jun 24, 2018
Thanks for the timely response, appreciate it

nathang24

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Reply 3 on: Yesterday
:D TYSM

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