Answer:
2262.08 pencils each. man it is silly. 56552/25
Step-by-step explanation:
Answer:
609
Step-by-step explanation:
Standard deviation =
= $30
Margin of error = E = $2
Confidence level = 90%
Since the distribution is said to be normal, we will use z scores to solve this problem.
The z score for 90% confidence level = z = 1.645
Sample size= n = ?
The formula to calculate the margin of error is:

Using the values in above equation, we get:

This means, the minimum number of observations required is 609
He needs to buy 3.6 spools but I guess that wouldn't be possible in real life so he needs to get 4 and then has some leftover.
12 3/5 / 3 1/2 = 3.6
Hi there!
Monday- 0 in.
Tuesday- 3 in.
Wedsnday- 2 1/2 in.
Thursday- 5 in.
Friday- 3 1/2 in.
Therefore, the answer is - 3 1/2 inches of snow was left on Friday.
Hope this helps you!
~DL
Answer:
mean
Step-by-step explanation: