The distribution of the amount of money spent by first-time gamblers at a major casino in Las Vegas is approximately normal in shape with a mean of $600 and a standard deviation of $120. According to the standard deviation rule, almost 84% of gamblers spent more than what amount of money at this casino?
A $360
B $480
C $600
D $720
E $840

Question

The distribution of the amount of money spent by first-time gamblers at a major casino in Las Vegas is approximately normal in shape with a mean of $600 and a standard deviation of $120. According to the standard deviation rule, almost 84% of gamblers spent more than what amount of money at this casino?
 A $360
 B $480
 C $600
D $720
E $840

anonymous · Answer

please help me

wcrmelissa2001 · Answer

Based on the definition of standard deviation (a quantity expressing by how much the members of a group differ from the mean value for the group - google) I would say that the answer would be $600+$120=$720