Answer:
0.65
Step-by-step explanation:
Find a common denominator, but whatever you multiply it by, you must take the same number and multiply the numerator as well. I hope that helps- Good luck!
Answer:
8000 is a perfect cube but 3375 can be also but i m a little sure that 8000 is a perfect cube
Answer:
17 i think
Step-by-step explanation:
Answer: The mean number of checks written per day 
Standard deviation
Variance 
Step-by-step explanation:
Given : The total number of checks wrote by person in a year = 126
Assume that the year is not a leap year.
Then 1 year = 365 days
Let the random variable x represent the number of checks he wrote in one day.
Then , the mean number of checks wrote by person each days id=s given by :-

Since , the distribution is Poisson distribution , then the variance must equal to the mean value i.e. 
Standard deviation : 
Fractions are basically divisions.
Ex. 2/4 = 1/2
And whole numbers like 10, get greater when raised to an exponent.
Ex. 10^2 = 100