Question

a marketing survey compiled data on the total number of televisions in households where k is a positie constant. What is the probability that a randomly chosen household has at least two televisions?

Answer 1

Hi, you have not provided the distribution, I'll solve the problem for a particular distribution and you can apply the same method for yours.

Answer:

0.39

Step-by-step explanation:

X is the random event and P(X) is the probability of the event X, therefore, X is the number of  televisions

Distribution:

X        0         1         2        3       4         5

P(X)    0.24   0.37   0.20   0.11   0.05   0.03

When they ask for the probability of at least Two televisions, they are asking for the probability that the householder has two or more television or P(X>2). To calculate the probability we need to add the probability of each event in the range:

P(X>2) = P(2) + P(3) + P(4) + P(5) = 0.20 + 0.11 + 0.05 + 0.03 = 0.39