Find the best solutions to your problems with the help of IDNLearn.com's experts. Join our knowledgeable community and get detailed, reliable answers to all your questions.

In how many ways can 4 people be chosen and arranged in a straight line if there are 13 people from whom to choose?

Sagot :

Answer:

17160

Step-by-step explanation:

Total number = n = 13

Number required = r= 4

If the number required does not have a specific order then combinations is chosen.

If a specific arrangement is required then permutations is used.

Here a  specific arrangement is mentioned therefore

13P4= 17160