From a group of 8 people, including george and nina, 3 people are to be selected at random to work on a certain project. what is the probability that 3 people selected will include george but not ninaa 5/56b 9/56c 15/56d 21/56e 25/56

 C.

Explanation:

Given : Total people = 8

Number of people are to be selected  = 3

The number of combinations of r things taken out of n things is given by :-

The total number of ways to select 3 people out of 8 is given by :-

If George is included , then one person is confirmed, so we need to selec only 2 people out of 7.

Also, Nina is not selected , so the total number of people left= 6

The total number of ways to select 2 people out of 6 that will include George but not Nina is given by :-

i.e. No. of favorable outcomes= 15

Now, the probability that 3 people selected will include George but not Nina :-

Hence, the required probability = C.

1) the stages a new product goes through from beginning to end, i.e., the stages that a product passes through from introduction through growth, maturity, and decline. 2) the time from initial research and development to the time at which sales and support of the product to customers are withdrawn. 3) the period of time during which a product can be produced and marketed profitably.

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