-4x- y = -17 still don’t understand it

so the answer is y

=

−

4

x

+

17

Step-by-step explanation:

team                           low                   high                 range               mean           median           iqr                   σ

team x                     190                   2280                 2090                   1005.9         921.5             841.75       542.7

team y                     745                   1820                 1075                   1165.5     1147.5             447                 262.1

team z                     950                   2275                 1325                   1906.6     2015.5             362.3           283.6

part a: if the manager wants to award the sales team that has the most consistent earnings among its team members, which team should it choose and why? justify your answer mathematically.

team y has the most consistent earnings among the team members.

i considered the mean, median, and iqr of team y.

median is in the 50% of the data. iqr is the difference between the 75% and 25% of the quartiles. the value of the mean is above the value of the median. the mean is w/in the 50%-75% of the quartile.

part b: if the manager wants to award the sales team with the highest average earnings, which team should it choose and why? justify your answer mathematically.

team z has the highest average earnings. average refers to the mean of the group. among the three, team z has the highest mean value which is 1906.60