Question

CARD A

Answer 1

We can expect 15 times an odd number when cube is rolled 30 times .

Step-by-step explanation:

Moises is rolling a number cube, with sides  numbered 1 through 6, 30 times. We need to find How many  times should he expect to roll an odd number . Let's find out:

We know that , in a cube numbered from 1 to 6 have 3 odd number as : 1,3,5

So , probability for an odd number is :

⇒ $\dfrac{3}{6}$

⇒ $\dfrac{1}{2}$

So , Number of we should expect for an odd number when cube is rolled 30 times is :

⇒ $\dfrac{1}{2}(30)$

⇒ $15$

Hence , We can expect 15 times an odd number when cube is rolled 30 times .