The margin of error of the random selection is 0.20
The given parameters are:
--- the sample size
--- the standard deviation
--- the mean
--- the confidence level.
The margin of error (E) is calculated as follows:
So, we have:
The z-value for 99% confidence level is 2.576.
Substitute 2.576 for z
Take square roots
Multiply
Approximate
Hence, the margin of error is 0.20
Read more about margin of error at:
brainly.com/question/14396648
Answer:
3
Step-by-step explanation:
z/12=18/72 z/12=1/4 z=3
Answer:
x=3
Step-by-step explanation:
The vertical asymptote is the x factor
Answer:13
Step-by-step explanation: Each classmate should get 13 marbles. To solve this simply divide 455 by 35.
