51.7k views
4 votes
Really appreciated :) 25 points

Really appreciated :) 25 points-example-1
User Melicent
by
7.5k points

1 Answer

3 votes

Answer:

a. 9

b. 4

c. 4/9

Explanation:

a. If we are picking 1 card out of 9, then there are 9 possible outcomes:

1, 2, 3, 4, 5, 6, 7, 8, or 9

This can also be represented as 9 choose 1 (
_9C_1).

b. We have to identify the number of prime numbers in the set:

2, 3, 5, 7

4 numbers

Note: Prime numbers can only be divided by themselves and 1 to result in a whole number.

c. We can represent the probability of selecting a prime number by dividing the number of prime numbers by the total number of numbers.

# of primes / # of numbers = 4 / 9

User Bbs
by
8.8k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories