Answer:
a
Step-by-step explanation:
Answer:
its D
Step-by-step explanation:
3/32 I think. I hope this helps! :)
Answer:
7
Step-by-step explanation:
By Basic proportionality theorem:

Answer:
109.33
Step-by-step explanation:
given that the population has a distribution with a mean of 110 and a standard deviation of 8
Sample size n = 40
Std error of sample mean = std dev/square root of sample size
= 
From std normal distribution table we find that 30th percentile for Z is
-0.5244
Corresponding x score =
30th percentile = 109.33663
=109.33