Answer:
you can be my bestie
Step-by-step explanation:
hello
Answer: 19.77%
Step-by-step explanation:
Given: Mean : 
Standard deviation : 
The formula to calculate z-score is given by :_

For x= 80, we have

The P-value = 
In percent , 
Hence, the approximate percentage of the test scores during the past year exceeded 80 =19.77%
Answer:6 x 30 =18 x ex
180= 18 ex
ex =180/18
number of days = 10
Step-by-step explanation:
Answer:
i think the answer is 392= 49/Q