Both spinners shown are divided into congruent sections. Juanita spins both spinners, records the results, and repeats the process.%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0AJuanita spins both spinners 40 times. What is a reasonable prediction for the number of times that NEITHER spinner will land on an odd number?

A. 6
B. 28
C. 5
D. 12

1 answer

B. 28

Since each spinner has an equal number of odd and even sections, there is a 50% chance that each spinner will land on an odd number. Therefore, the probability that NEITHER spinner will land on an odd number is 0.5 x 0.5 = 0.25.

With 40 spins, we can expect that 0.25 x 40 = 10 spins would result in NEITHER spinner landing on an odd number. This rounds to the closest reasonable prediction which would be 28 times.