Answer:
Standard error
Step-by-step explanation:
The standard deviation of the distribution of sample means is called the standard error of the means.
It is denoted by: 
The standard error is calculated using the formula: 
where n is the sample size and 
is the population standard deviation.
Answer:
A 1460
Step-by-step explanation:
Suppose that it is 185 students multiplied by 14 school districts.
ie 185*14=2590
4050-2590= 1460
Answer:
The formula would be to divide the length value by 100
, yielding 4.21 meters.
Step-by-step explanation:
Answer:
30 are present 10 are absent
Step-by-step explanation:
75%=3/4
so 3/4 of them are absent
3/4(40)=30
and 40-30=10 are absent
