Question

using a twenty sided number cube, what is the probability that you will roll an even number or odd prime number? the number 1 isnt an odd prime. round to three decimals.
A) 0.85
B) 0.8
C) 0.9
D) 0.75

Answer 1

answer = A- .0.85

2,4,6,8,10,12,
3,5,7,11,13,17,19

= 17 total numbers out of 20 = 85%

Answer 2

Answer:

0.85

Step-by-step explanation:

total samples cases = 20

chances that are even or odd prime are 17 chances

2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20

probability = 17/20

= 0.85