Answer:4.55,0.47
Step-by-step explanation:
Given height varies from 3.6 feet to 5.5 feet for 95% student
i.e.
95% data falls in the interval of (\mu -2\sigma ,\mu +2\sigma )
So
-----------(1)
-----------(2)
Solving (1)&(2) we get


Thus mean=4.55
And standard deviation=0.47
Answer:none of the options is correct
the answer is (5,0)
Step-by-step explanation:
Make a guess and check table to figure out if you do not know it off the top of your head.
The answer is 7 and 7