   Chapter 6, Problem 2P Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570

Solutions

Chapter
Section Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570
Textbook Problem

A psychology class consists of 14 males and 36 females. If the professor selects names from the class list using random sampling, a. What is the probability that the first student selected will be a female? b. If a random sample of n = 3 students is selected and the first two are both females, what is the probability that the third student selected will be a male?

a.

To determine

To find: The probability that the first student selected will be female.

Explanation

Given info:

The psychology class have 14 males and 36 females.

Calculation:

Calculating the probability that the first student selected will be female:

Let x denote the total number of females in the class.

And n denote the total number of students in the class.

P(Selecting female as first student )

b.

To determine

To find: The probability that third student will be a male.

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