EO 1 Exam Review – Second Opportunity
For the following sets of data:

Find the 5 number summary

Find the mean and standard deviation

Find the upper and lower cutoff values for outliers and identify any outliers in the data set

Draw a modified box plot for the distribution
1)
45, 98, 66, 78, 56, 17, 80, 77, 68, 37, 55
2)
77, 60, 70, 94, 60, 59, 15, 58, 58, 87, 33
3)
69, 28, 12, 93, 98, 92, 24, 60, 37, 33, 37
4)
37, 66, 73, 46, 69, 14, 54, 16, 40, 38, 97
5)
80, 14, 78, 35, 33, 40, 90, 83, 78, 66, 42
6)
56, 32, 80, 16, 93, 34, 18, 58, 75, 22, 66
For the following box plots:



7)
8)
9)
10)
11)
12)
Identify the shape of the distribution
Identify the 5 number summary of the distribution
Identify if the distribution has any outliers
13) After performing an inventory of new house prices in a particular neighborhood Taylor created to
following chart.
House 1
195,000
a) Find the 5 number summary for the data set.
House 2
225,250
House 3
275,500
House 4
199,750
House 5
224,800
House 6
325,100
b) Find the mean and standard deviation of the data set.
House 7
250,350
House 8
175,500
House 9
266,940
House 10
310,050
c) If the housing market crashes and the price of all the houses fall by
House 11
215,125
25,000, what will the new mean and standard deviation be?
House 12
290,350
d) Suppose that instead of all the houses loosing 25,000 in price they increase by 15% instead. Find the new
mean and standard deviation?
14) The following histogram shows the amount of time members of the California High School softball team
reported studying per week.
a) What percentage of students reported studying at least
25 hours per week?
b) What percentage of students reported studying at most
20 hours per week?
c) What percentile would a softball team member be if they studied between 10 and 15 hours per week?