What is the probability that all of the students

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An urn contains eight blue balls and six yellow balls. If four balls are selected randomly without being? replaced, what is the probability that of the balls? selected, three of them will be blue and one of them will be? yellow?

The probability that of the balls? selected, three of them will be blue and one of them will be yellow is ?

I have a statistics class of 20 ?students, of whom 8 are female. I randomly select 4 students to make a group presentation to the class.

a. What is the probability that all of the students in the group are? male?

b. What is the probability that two of the students in the group are ?male?

c. What is the probability that all four students in the group are? female?

d. Calculate the mean and standard deviation of this distribution.?

Reference no: EM132384212

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