Reference no: EM132075333
Please help me understand how to solve
In a past? election, the voter turnout was 77?%. In a? survey,864 subjects were asked if they voted in the election.
a. Find the mean and standard deviation for the numbers of voters in groups of 864
b. In the survey of 864 ?people, 675 said that they voted in the election. Is this result consistent with the? turnout, or is this result unlikely to occur with a turnout of 77%? Why or why? not?
c. Based on these? results, does it appear that accurate voting results can be obtained by asking voters how they? acted
a. μ=
(Round to one decimal place as? needed.)
σ=
?(Round to one decimal place as? needed.)
For μ= I am multiplying .77x864= 665.3
For σ= I am multiplying 864x.77x0.23=153.0144 then I square this and get 12.4
But, I keep getting these kind of question wrong. please help!
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