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Chapter 13: Q54. (page 708)

Find each probability if a coin is tossed 4 times. (Lesson 12-8)

P(4 heads).

Short Answer

Expert verified

P(4 heads) = 0.0625.

Step by step solution

01

Step 1. Given

A coin is tossed 4 times.

02

Step 2. To determine

P(4 heads).

03

Step 3. Calculation

Total number of tosses = n = 4

Probability of getting a head in each toss = p = 0.5

The number of heads = X = 4.

X follows a binomial distribution with n = 4 and p = 0.5.

So,

P4heads=PX=4=440.541鈭�0.54鈭�4=0.0625

Hence, P(4 heads) = 0.0625.

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