Answer:
D is a binomial random variable with 
Step-by-step explanation:
For each customer, there are only two possible outcomes. Either they have dogs, or they do not. The probability of a customer having a dog is independent of any other customer. This means that D is a binomial random variable.
Binomial probability distribution
Probability of exactly x successes on n repeated trials, with p probability.
65% of the customers have dogs:
This means that 
15 customers:
This means that 
What type of variable is D?
D is a binomial random variable with 
Answer:
18
Step-by-step explanation:
4(3) -(-6)
4 times 3 is 12. When you subtract a negative number the negative number gets added so it would be 12 + 6 which is 18. Hope that helps :)
A) there are 3 times 1/3 in each hour: so we have to multiply the original number by 3: 3*13=39!!
b)
so, 13 pages in 1/3 of an hour
for this we have to divide the time needed for the 13 pages by 13:

so each page requires

of an hour, which is approximately 1.5 minutes.
Answer:
D
Step-by-step explanation:
i added it
895/2=447.5
447.5-177=270.5
447.5+177=654.5
diamond has 270.5
and
jenny has 654.5