Answer:
Step-by-step explanation:
Given
The above table
Required
The standard deviation
First, calculate the class mid-point. This is the average of the class interval.
The mid-point x is:
So, we have:
Calculate mean
The standard deviation is:
His mistake was adding 12+2 when he was supposed to subtract.
Can you take another fully picture plez
This is a and d!! hope it helps
Answer:
c 4/3 ^^
Step-by-step explanation:
just did it on time4learning and it was correct