Question

Help please!!

A sixteen-sided number cube has the numbers 1 through 16 on each face. Each face is equally likely to show after a roll. What is the probability that you will roll an even number or an odd prime number? Round to the nearest thousandth.

A. 0.063

B. 0.813

C. 0.219

D. 0.875

Answer 1

list all the even numbers from 1 to 16

Answer 2

2,4,6,8,10,12,14,16

Answer 3

now list all the prime numbers from 1 to 16

Answer 4

2, 3, 5, 7, 11, 13

Answer 5

so the set of odd prime numbers is

3, 5, 7, 11, 13

combine this with the set of evens from 1 to 16 to get

2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 16

There are 13 numbers in this list out of 16, so the probability is 13/16 = 0.8125 which rounds to 0.813

Answer 6

thank you :)

Answer 7

np