Answer:
The percentage is 
Step-by-step explanation:
From the question we are told that
The population mean is 
The standard deviation is 
The percent of people who write this exam obtain scores between 350 and 650

Generally




From the z-table 
and 
=> 
=> 
Therefore the percentage is 
Answer: 9 inches
Step-by-step explanation:
<span>What makes the statement true?</span>7^-2= 0.0204081633
15 / 40 = .375
total # total #
of girls of students
.375 = 37.5%
15/40 as a fraction ---> simplify ---> 3/8
If i remember correctly.. it’s C, you cant have the X values repeating.