Suppose we want to choose 7 objects, without replacement, from 11 distinct objects. (a) How many...

Question

Question

math algebra

Answer 1

Answer #1

☆ The order is not relevant = 1C7 7!(11-7)! N F1x4! 2 11X10X9x8x7! FIXY! MIX10X9X8 4! z 1330 ways The order is relevant 11P7

Answer 2

Answer #2

SOLUTION :

Let N be the number of ways.

So,

a.

When order is not relevant :

N(7 out of 11 without replacement) order of arrangement of 7 chosen is not relevant.

= (11 *10 * 9 * 8 * 7 * 6 * 5 ) / 7! ways

= 330 ways (ANSWER)

b.

When order is relevant :

N(7 out of 11 without replacement)

= (11 *10 * 9 * 8 * 7 * 6 * 5 ) ways

= 1663200 ways (ANSWER)

answered by: Tulsiram Garg

Answer 3

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