Question

Determine the probability of rolling a number that is not even.


a. Which outcome or outcomes make up the event of rolling a number that is not even?


b. Calculate the probability of rolling a number that is not even.

Answer 1

Answer:

$\frac{1}{2}$ or 0.5 or 50%

Step-by-step explanation:

P(not even) = P(odd) = P(1) or P(3) or P(5) = P(1) + P(3) + P(5)

= $\frac{1}{6}$+ $\frac{1}{6}$+$\frac{1}{6}$ = $\frac{3}{6}$= $\frac{1}{2}$

Alternatively

P(not even) = 1 -P(even) = 1 - [P(2) or P(4) or P(6)]

= 1 - [ $\frac{1}{6}$+ $\frac{1}{6}$+$\frac{1}{6}$] = 1 - $\frac{3}{6}$ = $\frac{1}{2}$