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Essentials of Statistics for the B...

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

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Chapter
Section
BuyFindarrow_forward

Essentials of Statistics for the B...

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

Suppose that you are going to select a random sample of n = 1 score from the distribution in Figure 6.2. Find the following probabilities:

a.     p(X > 2)

b.     p(X > 5)

c.     p(X < 3)

(a)

To determine

To find: The probability that the random variable X is greater than 2.

Explanation

Given info:

The data represents the frequency distribution histogram for the population score N=10.

Calculation:

The probability for any specific outcome is defined as a fraction or a proportion of all the possible outcomes.

The formula for calculating the probability is,

P=f

(b)

To determine

To find: The probability that the random variable X is greater than 5.

(c)

To determine

To find: The probability that the random variable X is less than 3.

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