Look up range in the calculator
E) 12 minutes
A normal curve has approximately 95% of graph between mean - 2sd and mean + 2sd
So 95% of the times will be between 0 and 12 minutes. 6 - 2x3 to 6 + 2x3
2.5% will take over 12 minutes
Strangely 2.5% will also take less than 0 minutes to process which shows the normal curve is not perfect in this example.
The answer to the problem is D
Divide both numbers by 13/90
13/90x = 130
÷13/90 ÷13/90
x= 900
Answer:
p = 21.312
Step-by-step explanation:
Divide 2.4 on both sides.
p = 21.312
Hope this helped!
