Question

For each of the following experiments write sample space (S) and number of sample
points n(S).
1. Two digits numbers are formed using 3, 6, 9. (Here repetition of digit is allowed)
2. A box contains cards, each bearing numbers from 15 to 28.

Answer 1

Given :  Two digits numbers are formed using 3, 6, 9. (repetition of digit is allowed) . A box contains cards, each bearing numbers from 15 to 28.

To find : sample space (S) and number of sample points n(S).

Solution:

Two digits numbers   formed using 3, 6, 9.  

repetition of digit is allowed

S  = { 33 , 36 , 39 , 63 , 66 , 69  , 93 , 96 , 99 }

n(S) = 9

A box contains cards, each bearing numbers from 15 to 28

S = { 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 }

n(S) = 14

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