Create a histogram using the following data. Running times (min.): 22 53 27 35 26 45 25 31 63 62 23 56 62 37 45 52 26 33 65 37
20-29: 6
30-39: 5
40-49: 2
50-59: 3
60-69: 4
100
Find the mean, median and mode for the data set:
1 35 32 36 33 32
What is:
Mean: 28.17
Median: 32.5
Mode: 32
100
Identify the minimum, first quartile, median, third quartile and maximum of the given data.
62, 162, 256, 122, 209, 79, 177
What is
minimum: 62
first quartile: 79
median: 162
third quartile: 209
maximum: 256
100
To estimate the percentage of defects in a recent manufacturing batch, a quality control manager selects a random sample of 190 cans from each factory's four assembly lines. Determine whether this sampling method is random, systematic or stratified. Will this produce a good sample?
What is stratified. Yes, because the cans will be representative of the entire batch.
100
Find the value of the expression: 7!
What is 5,040
200
The amount (in dollars) paid by 20 students for textbooks during the fall term are listed. Determine the frequencies of the class intervals for this data.
21 53 29 35 27
46 36 31 62 61
23 57 61 39 46
51 27 33 66 39
20-29:6
30-39:5
40-49:2
50-59:3
60-69:4
200
Find the mean, median and mode of the following data.
12, 18, 11, 15, 18, 10
What is
Mean: 14
Median: 13.5
Mode: 18
200
Find the minimum, first quartile, median, third quartile, and maximum of the given data.
4.4, 3.1, 6.1, 5, 5.4, 5.3, 6.2, 4.1, 12.1
What is
minimum: 3.1
first quartile: 4.25
median: 5.3
third quartile: 6.15
maximum: 12.1
200
Determine whether the sampling method is random, stratified or systematic.
You survey two people at random from each department of a department store.
What is Stratified
200
Find the value of the expression: 9P5
What is 15,120
300
Use the data to make a histogram:
ages of relatives: 21 9 38 39 57 62 12 15 37 16 83 91 47 59 6 18 19 11
What is
0-19: 8
20-39: 4
40-59: 3
60-79: 1
80-99: 2
300
A student has gotten the following grades on his test. What is the minimum grade he must get on the last test to get an average of 81?
85, 88, 89, 71
What is 72
300
Identify the minimum, first quartile, median, third quartile and maximum of the given data.
238, 141, 79, 132, 226, 166, 123
What is
minimum:79
first quartile: 123
median: 141
third quartile: 226
maximum: 238
300
Determine whether the question is biased. Explain
Since speeding is a big problem, do you support government funding of studies on increased speed limits?
What is Yes because the question assumes that speeding is a big problem, which may or may not be true.
300
Find the value of the expression: 8C2
What is 28
400
Tell whether the histogram is uniform, skewed or symmetric:
F
I
What is uniform
400
Find the range and mean of each set of data:
Set A: 0 12 5 18 22
Set B: 11 16 15 18 12
Set A range: 22
Set A mean: 11.4
Set B range: 7
Set B mean: 14.4
400
Make a box and whisker plot to represent the set of data.
1.5, 5, 1.5, 2, 3.5, 2.5, 4, 2, 3, 2.5, 4, 2, 4, 1, 2, 4.5
What is
minimum: 1
first quartile: 2
median: 2.5
third quartile: 4
maximum: 5
400
Determine whether the question is biased. Explain your answer.
Since growing gas prices are a small problem, do you support government funding of studies on alternative fuel sources?
What is Yes, because the question assumes that growing gas prices are a small problem, which may or may not be true.
400
Baby Victor wants to arrange 4 blocks in a row. How many different arrangements can the baby make?
What is 24
500
Use the data to make a cumulative frequency table.
Height of buildings (ft.): 337 261 109 350 137 299 183 199 381 237 397 321
What is
100-149: 2
150-199: 4
200-249: 5
250-299: 7
300-349: 9
350-399: 12
500
Over the past 6 seasons, one baseball player's averages were: 0.222, 0.379, 0.246, 0.323, 0.253, 0.294. The second player's averages were: 0.359, 0.231, 0.304, 0.233, 0.287, 0.308. Find the range and mean of each player's averages.
Player 1:
range: 0.157
mean: 0.286
Player 2:
range: 0.128
mean: 0.287
500
About what percent of the data in a data set falls between the first quartile and the maximum value?
What is about 75%
500
In this situation, identify the population and sample. Tell whether the sample is a random, systematic or stratified sample.
At a high school soccer game, every spectator places his or her ticket stub in a bowl. After the game, the coach chooses four people to march in the sportsmanship parade.
What is
The population: the soccer game spectators
The sample: the four people to march in the sportsmanship parade
The sample is: random
500
An election ballot asks voters to select 4 city commissioners from a group of 14 candidates. In how many ways can this be done?