Dwayne and alisha both correctly graphed a standard normal curve. which of the following statements is true?
neither the means nor the standard deviations of dwayne’s and alisha’s graphs must be the same.
the means of dwayne’s and alisha’s graphs must be the same but not the standard deviations.
the standard deviations of dwayne’s and alisha’s graphs must be the same but not the means.
both the means and the standard deviations of dwayne’s and alisha’s graphs must be the same.

Solution:

If Dwayne and  Alisha both correctly graphed a standard normal curve, of the same set of Data .

As for normal distribution , to draw the curve which is bell shaped, we need mean and standard Deviation.

So, if they have drawn the graph correctly, it means Both the means and the standard deviations of Dwayne’s and Alisha’s graphs must be the same.→→→→Option (D)

he spend 5.1 minutes chatting with his friends

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5 1/10

step-by-step explanation:

goog be able to you with that maybe