Answer:
20 times
Step-by-step explanation:
We are given a cube that has s 6 faces that are numbered from 1 through 6.
She expect to roll a number that is greater than 4 .
A number greater than 4 of dice = 5 or 6
Probability of getting 5 = [tex]\frac{\text{favorable event}}{\text{total events}}[/tex]
Favorable event ={5}=1
Total events ={1,2,3,4,5,6}=6
So probability of getting 5 = [tex]\frac{1}{6}[/tex]
Probability of getting 6 = [tex]\frac{\text{favorable event}}{\text{total events}}[/tex]
Favorable event ={6}=1
Total events ={1,2,3,4,5,6}=6
So probability of getting 6 = [tex]\frac{1}{6}[/tex]
Thus the probability of getting 5 or 6 = [tex]\frac{1}{6}+\frac{1}{6}[/tex]
= [tex]\frac{2}{6}[/tex]
= [tex]\frac{1}{3}[/tex]
Since She plans on rolling the number cube 60 times
So,she expect to roll a number that is greater than 4= [tex]60*\frac{1}{3}[/tex]
=20
Hence she should expect 20 times to roll a number that is greater than 4
