85% of all graduate students in the music department at a large university are women. If...

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85% of all graduate students in the music department at a large university are women. If...

85% of all graduate students in the music department at a large university are women. If a sample of 100 music graduate students is selected at random, how many women do you expect to see in that sample?

55

85

75

15

math Statistics-And-Probability

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Answer 1

Answer #1

Ans:

Sample size,n=100

Probability of being women,p=0.85

Expected number of women=np=100*0.85=85

Correct option is 85

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Answer 2

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