The probability that less than 2 people will return the purchased items on the web be, 0.52822
Given, a research claims that 30% of people, who purchase items on the web of a specific store, return it.
Now, if we pick 5 people who purchase via the web,
then we have to find the probability that less than 2 will return their purchase
we have to find, P(X < 2)
Now, n = 5
p = 0.3
q = 0.7
P(X < 2) = P(X = 0) + P(X = 1)
P(X < 2) = C(5 , 0)(0.3)^0(0.7)^5 + C(5 , 1)(0.3)^1(0.7)^4
P(X < 2) = (0.16807) + (0.2401)(0.3)(5)
P(X < 2) = 0.16807 + 0.6015
P(X < 2) = 0.52822
So, the probability that less than 2 will return be, 0.52822
Hence, the probability that less than 2 will return be, 0.52822
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