#1) d) large
#2) b) 80
#3) b) 3300
There were more responses for large in the survey, so they should focus on large.
There were 120 medium and large shirts sold out of 150 total sold:
120/150 = 0.80 = 80%
There were 11 out of 150 shirts sold that were small:
11/150(45000) = 3300
P=12,500×(1+0.23)^(4)
P=28,610.83
A normally distributed result means that when the data is
plotted on a graph, we can actually see a bell shaped curve. That highest
frequency or peak is centered on the average value. Because it is shaped like
this, we can say that:
most scores are around the average with some scores being
lower or higher