Answer: I think it’s A - 28
Step by step:
For the sum : if you add 11 + 17 it gives you 28.
For the division: if you divided 28 by 3 it would equal 9.3.
So I think it’s 28 I’m not so sure
Answer:
The standard error of the sample mean is _17.677_ psi.
Step-by-step explanation:
<u>Explanation</u>:-
A random sample of n = 8 specimens is collected.
Given sample size is n = 8
Given mean of the population 'μ' = 2500 psi
standard deviation 'σ' = 50 psi
Let x⁻ is the mean of the observed sample
Standard error of the sample mean =
...(i)
Given Population of standard error (S.D) 'σ' = 50 psi
Now substitute all values in (i)

<u>Conclusion</u>:-
The standard error of the sample mean is _17.677psi.
The answer is the last one. Just plug 1,2,3,4 in for n.
Let x = number of days
The initial number of frogs = 21.
The number of frogs triples every 7 days.
The exponential function that models the number of frogs with respect to the number of days is

When the population is 150, then

A graph of y versus confirms the answer.
Answer: 12.5 days