Yes your answer is the correct choice
Luz earns $400 for 40 hours of work
this represents :
400/40 = $10 per hour
therefore
in 6 hours, she will earn :
6 x $10 = $60
In the following sets; set A has a median of 10 and a mean of 8.85 and a skewness of -0.3061. Therefore about set A, the median of set A is larger than the mean of set A, It is also skewed to the left since it has a negative skewness and hence not symmetrical (skewness is 0).
set B, the median is 8 and the mean is 8 and the skewness is zero. therefore; set B has the same median and mean, set B is symmetrical since it has a skewness of 0. It is not right skewed (positive skewness)