Answer:
14
Step-by-step explanation:
21 divided by 3 =7 7 per 1/3
7x2=14
Answer:
Step-by-step explanation:
Given
-- number of rolls
Required
The mean of 2's
The distribution follows binomial distribution where:
In this case:
---- the theoretical probability of rolling 2
So, the mean of 2's is calculated using:
Simplify
or
6/10 or simplified it could be 3/5 shots because 60% is the same a 60/100 so just simplify it down to the lowest common factor
Answer: B ( 2,9) .
Step-by-step explanation: