SOLUTION: A new television salesperson knows that she sells televisions to one out of every 20 customers. The probability that she will sell a television to exactly two of the next 10 custom

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Question 852828: A new television salesperson knows that she sells televisions to one out of every 20 customers. The probability that she will sell a television to exactly two of the next 10 customers is?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 
Hi,
p = 1/20 = .05, n = 10
Using TI: The syntax is binompdf(n, p, x-value)
P(x = 2) = binompdf(10, .05, 2)
Using P+%28x%29=+highlight_green%28nCx%29%28p%5Ex%29%28q%29%5E%28n-x%29+
P(x = 2) = 45(.05)^2(.95)^8