Question

in the probability distribution to the right, the random variable ( x ) represents the number of marriages an individual aged 15 years or older has been involved in. complete parts (a) through (f).
if many randomly selected individuals aged 15 years or older were surveyed, the observed number of marriages will be equal to the mean number of marriages for most individuals.
(d) compute the standard deviation of the random variable ( x ).
( sigma_{x}=0.7 ) marriages
(round to one decimal place as needed.)
(e) what is the probability that a randomly selected individual 15 years or older was involved in exactly two marriages?
type an integer or a decimal do not round

Explanation:

Step1: Identify the probability value

From the given probability distribution table, when \(x = 2\), the probability \(P(x)\) is given.

Answer:

\(0.122\)