Answer:
The variance is 
Step-by-step explanation:
From the question we are told that
The sample size is n = 21
The sum of squares is 
Generally the variance is mathematically represented as

substituting values


Answer:
Jim has 700 and wants 300 left. he can spend 400. 25 every weekend. divide 400 by 25 and you get 16. the answer is 16
Step-by-step explanation:
Three hundred ninety six divided by twenty four = 16.5
The answer is B
Because if you use your calculation right you would end up with 16,463
Answer:
X= 75, Y=30 there you go!
Step-by-step explanation: