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Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked at that company. She asked the same question of a group of 24 employees at Company Q. The line plots below show her results, where each X represents one employee.

Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

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Page 1: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Mid Term Exam Question #17

Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked at that company. She asked the same question of a group of 24 employees at Company Q. The line plots below show her results, where each X represents one employee.

Page 2: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Mid Term Exam Question #17

For the group of employees at Company P, what was the mode for the years worked by the end of 2005? 8

Page 3: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Mid Term Exam Question #17

For the group of employees at Company P, what was the median for the years worked by the end of 2005? 7

Page 4: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Mid Term Exam Question #17

For the group of employees at Company Q, what was the mode for the years worked by the end of 2005? 2 and 3

Page 5: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Mid Term Exam Question #17

For the group of employees at Company Q, what was the median for the years worked by the end of 2005? 3.5

Page 6: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Mid Term Exam Question #17

Without computing the mean for either group, which group of employees has the greater mean number of years worked?

Most of the employees at Company P have more than 5 years while most of the employees at Company Q have less than 5 years?

Page 7: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Let S represent the number of small picture frames and L represent the number of large picture frames that she bought

Mid Term Exam Question #17

Serena bought some small and large picture frames.

She paid $3 for each small frame and $5 for each large frame.

She bought a total of 10 picture frames and paid a total of $36.

How many LARGE picture frames did she buy?

Page 8: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Mid Term Exam Question #17

She paid $3 for each small frame and $5 for each large frame.

She bought a total of 10 picture frames and paid a total of $36.

How many LARGE picture frames did she buy?

3 5 36S L

10S L

Page 9: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Mid Term Exam Question #17

3 5 36S L 10S L

10S L

3 5 36S L

3103 5 6L L 30 3 5 36L L

30 2 36L 2 6L

3L

Page 10: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Cluster 3-C-3 Data Displays Practice #1

Using the given pictograph, what percent of the total number of cars sold at Thrifty’s in September did Dan sell?

50

55

60

35

200 Total Cars

60 out of

200 Total Cars

is 30%

Page 11: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Cluster 3-C-3 Data Displays Practice #2

What percent of Tim’s exercise program is dedicated to running?

150 Total Minutes

60 out of

150 Total minutes

is 20%

Page 12: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Cluster 3-C-3 Data Displays Practice #3

If Metropolis has 42,000 homes, how many are NOT heated with Natural Gas?

48.3% are NOT heated

with Natural Gas

48.3% of 42,000

i 20,286s homes

Page 13: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Cluster 3-C-3 Data Displays Practice #4

The line plot below shows the scores on an 80 point test. What are the mean, median and mode?

60 (2 62) 63 64 (3 65) (2 68)

(3 70) (5 72) 76 78 (3 80)

23Mean

Page 14: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Cluster 3-C-3 Data Displays

Bar GraphsUsed to compare amounts

What was the percent increase in student enrollment from 1990 to 1991?

Page 15: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Cluster 3-C-3 Data Displays

PictographsUsed to compare amounts by using symbols

How many more townhouses were built in Fox Hill than in The Woods?

Page 16: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Cluster 3-C-3 Data Displays

PictographsUsed to compare amounts by using symbols

The number of townhouses in Deerfield is what percent of the number of townhouses in Hudson Hills?

Page 17: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Cluster 3-C-3 Data Displays

HistogramsLike a bar graph, but used to compare frequencies

How many people under the age of 19 were at the concert?

Page 18: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Cluster 3-C-3 Data Displays

HistogramsLike a bar graph, but used to compare frequencies

How many people between the ages of 25 and 36, inclusive, were at the concert?

Page 19: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Cluster 3-C-3 Data Displays

Line GraphsShows continuous change over time

What is the average population growth PER YEAR?

Page 20: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Cluster 3-C-3 Data Displays

Line GraphsShows continuous change over time

At this rate, what would you expect the population to be in 2020?

Page 21: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Cluster 3-C-3 Data Displays

Line PlotLike a histogram, it compares frequencies

What is the median age of the Haversham cousins?

Page 22: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Cluster 3-C-3 Data Displays

Line PlotLike a histogram, it compares frequencies

What is the mean age of the Haversham cousins?

Page 23: Mid Term Exam Question #17 Carla collects employment data. At the end of 2005, she asked a group of 25 employees at Company P how many years each had worked

Cluster 3-C-3 Data Displays

Line PlotLike a histogram, it compares frequencies

What is the mode age of the Haversham cousins?