To find the probability of pulling a number that is either even or prime, we need to find the total number of even numbers and prime numbers from 1-18.
Even numbers from 1-18: 2, 4, 6, 8, 10, 12, 14, 16, 18 (total of 9 even numbers)
Prime numbers from 1-18: 2, 3, 5, 7, 11, 13, 17 (total of 7 prime numbers)
However, we notice that the number 2 is both even and prime, so we need to remove its duplicate count.
Total even and prime numbers (without duplicates): 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 16, 17, 18 (total of 15 numbers)
Therefore, the probability of pulling an even number or a prime number is 15/18 = 0.833.
The correct response is 0.833.
There are 18 number-tiles in a jar, each marked with a different number from 1-18. If you pull out one tile at random, what is the probability that the number you pull will be an even number or a prime number? (1 point) Responses 0.889 0.889 0.944 0.944 0.833 0.833 0.722
1 answer
1 answer