Answer:
Step-by-step explanation:
18
9 . 2
3 3
Answer:
Step-by-step explanation:
Given
--- orders from first time customer
--- samples
Required
First, calculate the mean
Next, the standard deviation
For ,
The z score is:
So:
From z probability:
Hence:
Answer:
7
Step-by-step explanation:
84/12= 7
Answer:
Step-by-step explanation:
C=-2.28
-2.28 +4 =2.28
Answer: A
Step-by-step explanation:
2y - 10 > 13 y = -5
2(-5) - 10 > 13
-10 - 10 > 13
-20 > 13
False