Answer:B
Step-by-step explanation:
The ratio of boys to girls is
5:6
So if we do that for 385 students the ratio would show 462 girls
Pls give me a brainliest if this helped thx
Answer:
The margin of error is of 0.3012, and it means that we should be 99% confident that the population mean would be within 0.3012 of the sample mean.
Step-by-step explanation:
Margin of error

In which
is the standard deviation and n is the size of the sample.
Standard deviation of 1.3
This means that 
She surveys 124 families
This means that 
Margin of error and meaning:



The margin of error is of 0.3012, and it means that we should be 99% confident that the population mean would be within 0.3012 of the sample mean.
Answer: Man sorry I don’t know how to solve that go to a math solver or something
Step-by-step explanation: