For a normal distribution curve with a mean of 19 and a standard deviation of 6, which range of the variable defines an area under the curve corresponding to a probability of approximately 68%?

from 16 to 22

from 13 to 25

from 19 to 31

from 7 to 31

from 16 to 22

from 13 to 25

from 19 to 31

from 7 to 31

#### Top Answer

Attached is a detailed explanation... View the full answer