Question 5 (1 point)
The National Junior Honor Society rented a shaved ice machine to sell shaved ice as a fundraiser. They paid an initial fee and then an hourly
charge. The table below shows the cost per hour.
Number of
Hours, x
23
Cost (S), y
30
35
Which equation represents y, the cost of renting the ice machine for x hours renting the machine?
a
Ob
Oc
od
y = 30x + 5
y = 5x + 20
y = 20x + 5
y = 5x + 30
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Review Answers

1. why is a frequency distribution useful? it allows researchers to see the "shape" of the data. it tells researchers how often the mean occurs in a set of data. it can visually identify the mean. it ignores outliers. 2. the is defined by its mean and standard deviation alone. normal distribution frequency distribution median distribution marginal distribution 3. approximately % of the data in a given sample falls within three standard deviations of the mean if it is normally distributed. 95 68 34 99 4. a data set is said to be if the mean of the data is greater than the median of the data. normally distributed frequency distributed right-skewed left-skewed