One normal curve has mean 22 and standard deviation 4, a second normal curve has mean 4 and standard deviation 8. The curve that is more dispersed, or spread out, is
A) The first normal curve
B) The second normal curve
C) They are equally spread out
D) There is insufficient information to answer the question

Question

Quizplus · Accepted Answer

The standard deviation of the second normal curve is 8, which is twice as large as the standard deviation of the first normal curve (4). This means that the second normal curve has a greater spread or dispersion of data, so it is more spread out.

One Normal Curve Has Mean 22 and Standard Deviation 4