Question

What is the probability that exactly four ball pens are sold?

Answer 1

Answer:

3 or 4

hope it helps you..

Answer 2

Given:

P(X=0) = 0.029

P(X=1) = 0.049

P(X=2) = 0.078

P(X=3) = 0.155

P(X=4) = 0.212

P(X=5) = 0.262

P(X=6) = 0.215

To find:

P(X=4)

Step-by-step explanation:

Step 1 of 1

The probability of selling exactly four ball pens is given by the probability distribution P(X=4).

P(X=4) = 0.212

So, there is probability of 0.212 for the selling of exactly four ball pens.

[Your question is incomplete, but most probably your full question was -

WHAT I CAN DO

In a school canteen, the number of ball pens (x) sold every recess time varies from day to day. Past records indicate that the probability distribution of x is as follows:

(a) What is the probability that exactly four ball pens are sold?]