The owner of a chain of clothing stores is comparing the monthly profit earned in the past year from four different store locations. she calculated the mean and standard deviation of the monthly profit, in dollars, for each location, as shown in the table.

location a location b location c location d
mean = 23,124.70
sd = 1,553.43 mean = 24,842.18
sd = 1,617.20 mean = 20,833.33
sd = 1,462.15 mean = 21,432.82
sd = 1,512.10

for which store location does 68% of the data lie between $19,371.18 and $22,295.48?

a.
location a
b.
location b
c.
location c
d.
location d