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 :
⇒ [tex]\dfrac{3}{6}[/tex]
⇒ [tex]\dfrac{1}{2}[/tex]
So , Number of we should expect for an odd number when cube is rolled 30 times is :
⇒ [tex]\dfrac{1}{2}(30)[/tex]
⇒ [tex]15[/tex]
Hence , We can expect 15 times an odd number when cube is rolled 30 times .
