From the given statement above, the information that can be extracted from the data is the mean which is equal to 9 % , SD equal to 4%, n is equal to 20. we can also get the variance from SD. also, we can also determine the z-score of the data which is important in the distribution.
Answer:
6; 54 is 6 times 9
Step-by-step explanation:
9x = 54
x = 54/9
x = 6
Answer: B, D
Step-by-step explanation:
You Can just count the blocks
B: has 24 and D has 24 which both of them are between 30 and 20
I will answer if u post the ?s in a coment
