Answer:
Here the answer LOL
Step-by-step explanation:
Answer: 95.45 %
Step-by-step explanation:
Given : The distribution is bell shaped , then the distribution must be normal distribution.
Mean : 
Standard deviation :
The formula to calculate the z-score :-

For x = 13

For x = 19

The p-value = 

In percent, 
Hence, the percentage of data lie between 13 and 19 = 95.45 %
Answer:
Evaluate:
-
- 
Factor:

Step-by-step explanation:
Answer:
Its 3
Step-by-step explanation:
Answer:
d
Step-by-step explanation: