Question

A real estate agent has 19 properties that she shows. She feels that there is a 30 % chance of selling any one property during a week. The chance of selling any one property is independent of selling another property. Compute the probability of selling at least 5 properties in one week.

Answer 1

X :number of properties sold in a week.

X ~ bin (n,p)

where, n = 19

p = 30% = 0.3

q = (1-p) = (1-0.3) = 0.7

the pmf of the distribution be:-

the probability of selling at least 5 properties in one week be:-

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