Mathematics, 15.04.2021 03:40 nisha87
In a poll conducted by the General Social Survey, 81% of respondents said that their jobs were sometimes or always stressful. Let X be the number of respondents that said their jobs were sometimes or always stressful. Ten workers are chosen at random
Calculate the following probabilities. Round your answers to three decimal places.
a)P(X=7)
b)P(X≤5)
c)P(X>3)
d)P(X≥8)
e)Calculate the expected number of workers who their jobs were sometimes or always stressful. Round to the next whole number (e. g. 1.01≈2 )
E(X)=n∗p=
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