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
0.026 (type an integer or a decimal. do not round.)
b. find the probability of getting 4 or more sleepwalkers among
(type an integer or a decimal. do not round.)

Explanation:

Step1: Understand the problem

We need to find \( P(X\geq4) \), which is \( P(X = 4)+P(X = 5) \) according to the probability distribution table.

Step2: Substitute the values

From the table, \( P(X = 4)=0.026 \) and \( P(X = 5)=0.002 \).
So, \( P(X\geq4)=0.026 + 0.002 \).

Step3: Calculate the sum

\( 0.026+0.002=0.028 \).

Answer:

\( 0.028 \)