SOLUTION: If a salesman makes a sale on 70% of his sales calls. If he calls four potential clients, what is the probability he makes exactly 3 sales? What is the probability he makes exactly

Question 522239: If a salesman makes a sale on 70% of his sales calls. If he calls four potential clients, what is the probability he makes exactly 3 sales? What is the probability he makes exactly 4 sales?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
If a salesman makes a sale on 70% of his sales calls. If he calls four potential clients, what is the probability he makes exactly 3 sales? What is the probability he makes exactly 4 sales?
---------------
Binomial Problems with n = 4 and p(sale) = 0.7
-------
P(x = 3) = 4C3*0.7^3*0.3 = 0.4116
----
P(x = 4) = 4C4*0.7^4 = 0.2401
====================
Cheers,
Stan H.
=====================
RELATED QUESTIONS
Gary schwartz is the top saleman for his company. records indicate that he makes a sle on (answered by stanbon)

a telemarketer makes a sale on 48% of his calls. if he makes a total of 12 calls in one... (answered by stanbon)

A salesman from his records figures shows that probability of sales on first call is 0.7... (answered by greenestamps)

Records indicate that I will make a sale on 70% of my sales calls. If I call 4 potential... (answered by ewatrrr)

an office worker claims that at most 30% of his phone calls make sale. If he makes 190... (answered by stanbon)

A salesman made 220 calls this week. He made 33 sales. What percent of his calls resulted (answered by Boreal)

A door-to-door salesman expects to make a sale 25% of the time when starting the day. But (answered by Boreal)

A sales representative calls on four hospitals. It is immaterial what order he calls... (answered by checkley75)

A salesman makes a commission of x percent on the first Rs. 2,000 worth of sale in any... (answered by mathstutor494)