Question

the accompanying table describes the random variable x, the numbers of adults in groups of five who reported sleepwalking. complete parts (a) through (d) below.
click the icon to view the table.
a. find the probability of getting exactly 4 sleepwalkers among 5 adults.
.033 (type an integer or a decimal. do not round.)
b. find the probability of getting 4 or more sleepwalkers among 5 adults.
□ (type an integer or a decimal. do not round.)

Explanation:

Step1: Find probability for part a

From the table, when \(x = 4\), \(P(x)=0.033\)

Step2: Find probability for part b

To find \(P(x\geq4)\), we use the formula \(P(x\geq4)=P(x = 4)+P(x=5)\)
\(P(x = 4)=0.033\), \(P(x = 5)=0.008\)
\(P(x\geq4)=0.033 + 0.008\)

Answer:

a. \(0.033\)
b. \(0.041\)