Download Stats Test Review

Stats Test Review
Algebra 2
Name________________
Date_________________
Make a stem and leaf plot of the data and then find the mean, median, mode, and range.
1.
35, 36, 38, 36, 42, 45, 41, 48
Stem
2.
Leaf
88, 90, 92, 75, 88, 76, 79, 85
Stem
Mean:
Mean:
Median:
Median:
Mode:
Mode:
Range:
Range:
3.
4.
76, 102, 87, 85, 91, 92, 91, 97
Stem
Leaf
Leaf
103, 155, 140, 125, 130, 140, 115
Stem
Mean:
Mean:
Median:
Median:
Mode:
Mode:
Range:
Range:
Leaf
Compare box and whisker plots A and B.
5.
What is the median of each data set?
6.
What is the least value in plot A?
7.
What is the greatest value in plot B?
8. What is the lower quartile of each data set?
A
B
4
0
8
12
16
20
9. What is the upper quartile of each data set?
10. Which plot has the greater interquartile range?
11. Which plot illustrates the larger range of data?
12. What percent of the data in plot A is greater than 8?
13. What percent of the data in plot B is less than 18?
For the following sets of data find the 5 number summary, ranges, and fences. Name any
outliers and then create a box and whisker plot.
14. 48, 3, 19, 17, 4, 4, 14, 3, 13,
15. 2, 31, 10, 17, 10, 11, 17, 13, 3,
19, 13, 7, 17, 10, 14
5, 41, 5, 17, 11, 17
FIVE NUMBER SUMMARY
FIVE NUMBER SUMMARY
Smallest Number
Smallest Number
Lower Quartile
Lower Quartile
Median
Median
Upper Quartile
Upper Quartile
Largest Number
Largest Number
RANGES
RANGES
Range
Range
IQR
IQR
OUTLIER FENCES
OUTLIER FENCES
Outlier Number
Outlier Number
Lower Fence
Lower Fence
Upper Fence
Upper Fence
Outliers:__________________
Outliers:__________________
24
16. The numbers below represent the number of chin-ups done in 20 seconds by students in a gym
class. Create a frequency distribution of the data. Then draw a histogram.
1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 4, 4, 5, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9
6
Interval
Tally
Frequency
5
Frequency
(scores)
1-2
4
3
2
1
0
Range
17. The numbers below represent students’ scores on a recent test. Create a frequency distribution
of the data. Then draw a histogram.
78, 87, 92, 70, 94, 99, 76, 70, 81, 95, 82, 71, 79, 88, 98, 77, 84, 72, 75
6
69-76
Tally
5
Frequency
Frequency
(scores)
Interval
4
3
2
1
0
Range
18. The histogram below shows the cost of sandwiches at a restaurant.
a) How many sandwiches cost between $4.00
and $4.49?
b) How many more sandwiches cost $5.50$5.99 than $4.50-$4.99?