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

Answer:
(A)
Step-by-step explanation:
A)The degree of the function is odd, so the ends of the graph continue in opposite directions. Because the leading coefficient is positive, the left side of the graph continues down the coordinate plane and the right side continues upward.
Answer:
Step-by-step explanation:
The equations state -5(3s-9)=23. So 1st you wanna multiply 3s and -9 by -5. Which would get you -15s+45=23.
Than you subtract 23 from 45 which would equal -22 and than divide 15 from that
So the equation would equal 1.47