The average age is 11 to 12 years of age. Standard deviation is 2 years.
1,600,000,000
900
Thirty million.
43.12
25,000 that is it boom
Exactly as in the question: standard deviation!
433,000
5,104,000
2,016,007,000.
700,070,070 -- that's the answer:)
Exactly as in the question: standard deviation!
the check a stander marks details in using a uml diagram