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March 29, 2017

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The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall semester on the basis of past experience.

Admissions Probability
1,080 0.5
1,340 0.2
1,660 0.3

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(a) What is the expected number of admissions for the fall semester? (Round your answers to the nearest whole number.)

Expected number of admissions

(b) Compute the variance and the standard deviation of the number of admissions. (Round your answers to 2 decimal places.)

Variance
Standard deviation

  • Stats - ,

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