Answer:
95%
Step-by-step explanation:
Margin of error is the standard error times critical value.
ME = SE × CV
The standard error for a sample mean is:
SE = σ / √n
SE = 25 / √100
SE = 2.5
If the margin of error is ±5, then the critical value is:
5 = 2.5 CV
CV = 2
Since the sample size is greater than 30, we can approximate the confidence level using normal distribution. The percent between -2 and 2 standard deviations is 95%.
Therefore, there is a 95% probability the sample mean is within ±5 of the population mean.
15:7.5:30
This is because 15 is the smallest, which is half of 4(30). And right between 15 and 30 is 7.5.
Hope this helps
Answer:
A,B, C are right!
Step-by-step explanation:
If you were to plot those numbers on the line, it would be true!
Good Luck!!!!!
Answer:$13.22
Step-by-step explanation:First,you add nine dollars and 118.89 together.Altogether you should get $118.98 then divide 118.98 by 9,and you get $13.22.
Answer:
y=3x+12, i d k, and i d k im sorry
Step-by-step explanation: