Test scores. three statistics classes ail took the same
test histograms of the scores for each class are shown
delow,
sol students
30
60
of students

of shadente
class 3
b) which dass had the highest median score? css 2
c) for which class are the mean and median most dif-
ferent? which is higher? why?
d) which dass had the smallest standard deviation?
e) which class had the smallest iqr?

The class wants to raise a total of $750.if they receive a profit of $1.25 from each candybar sold, how many bars must they sell to reachtheir goal

An empty bucket is placed under a faucet dripping at a constant rate of 4 milliliters per minute. with the given information, which of these statements is a reasonable conclusion? a there will be 24 milliliters of water in the bucket after 16 hour. b there will be 60 milliliters of water in the bucket after 14 hour. c there will be 160 milliliters of water in the bucket after 20 minutes. d there will be 100 milliliters of water in the bucket after 40 minutes.

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?