Check all that apply

false
false
The red distribution is more normal than the blue distribution.
false
The red distribution has less skew than the blue distribution.
false
The blue distribution has a larger standard deviation than the red distribution
true
The blue distribution has a larger mean than the red distribution
n1.gif
Both distributions are normal and neither has any skew. The blue distribution has a smaller, not a larger standard deviation than the red distribution. The blue distribution has a larger mean (80) than the blue distribution (50).
Normal distributions always have means of 50.

Normal distributions can have any finite number as their mean.
false
false
true
true
false
The standard deviation of the red distribution is about:

About 95% of this distrubution is between 20 and 80. These scores are 30 points from the mean and should also be about 2 standard deviations from the mean. Therefore, the standard deviation is about 30/2 = 15.
false
5
Use the simulation to try out this standard deviation and see if it matches.You may have to change the value of the blue distribution since it covers up the red distribution if the parameters are the same.
false
10
Use the simulation to try out this standard deviation and see if it matches.
true
15
false
20
Use the simulation to try out this standard deviation and see if it matches.
n2.gif