# MATH225 Week 2 Assignment Line and Bar Graphs (July 2019)

**MATH 225 Statistical Reasoning for the Health Sciences**

**Week 2 Assignment Line and Bar Graphs**

Question The accounting manager encourages accountants to check their work at least two times to ensure there are no calculation errors. According to the data above, should the accounting manager be concerned about errors made in the work conducted at the office?

No, the accounting manager should not be concerned because everyone in the office is checking their work at least two times.

No, the accounting manager should not be concerned because everyone in the office is checking their work at least three times.

Yes, the accounting manager should be concerned because no one in the office is checking their work.

Yes, the accounting manager should be concerned because a majority of employees are not checking their work.

Question An accounting manager is conducting research on how many times each accountant in the office checks their work. The following table shows the number of times each accountant checks their work.

Check Work

Frequency

None

6

Once

3

Twice

2

Three times

0

Four times

0

HelpCopy to ClipboardDownload CSV

Create the corresponding bar graph to represent this data below. Drag the dots on the top of the bar graph to create the chart.

Question Marc is keeping track of the total number of movies he has watched over time. The line graph below shows the data where the number of movies corresponds to the number of movies that had been watched at the beginning of the week shown on the horizontal axis.

A line graph titled Movies Watched Over Time has a horizontal x-axis, labeled Weeks, from 0 to 5 in increments of 1 and a vertical y-axis, labeled Movies, from 0 to 8 in increments of 2. The graph consists of six plotted points connected by line segments from left to right. The coordinates of the plotted points are at left-parenthesis 0 comma 0 right-parenthesis, left-parenthesis 1 comma 2 right-parenthesis, left-parenthesis 2 comma 6 right-parenthesis, left-parenthesis 3 comma 7 right-parenthesis, left-parenthesis 4 comma 8 right-parenthesis, and left-parenthesis 5 comma 9 right-parenthesis.

How many movies did Marc watch between the beginning of week 1 and the beginning of week 5? Do not include the unit in your answer.

Question Alice is keeping track of the total number of books she has read over time. The line graph below shows the data.

A line graph titled Books Read Over Time has a horizontal x-axis, labeled Months, from 0 to 5 in increments of 1 and a vertical y-axis, labeled Books, from 0 to 10 in increments of 2. The graph consists of six plotted points connected by line segments from left to right. The coordinates of the plotted points are at left-parenthesis 0 comma 1 right-parenthesis, left-parenthesis 1 comma 3 right-parenthesis, left-parenthesis 2 comma 4 right-parenthesis, left-parenthesis 3 comma 6 right-parenthesis, left-parenthesis 4 comma 8 right-parenthesis, and left-parenthesis 5 comma 10 right-parenthesis.

How many books did Alice read from month 2 to 3? Do not include the unit in your answer.

Question The bar graph below shows the number of men and women in different classes.

A side-by-side bar graph has a horizontal axis labeled Classes with groups Chemistry and Law and a vertical axis labeled Students from 0 to 14 in increments of 2. There are two vertical bars over each horizontal axis label, with the bar on the left representing men and the bar on the right representing women. The heights of the bars are as follows, with the horizontal axis label listed first and the bar heights listed second from left to right: Chemistry, 14 and 11; and Law, 12 and 13.

How many total students are in the Chemistry class? Do not include the units in your answer.

Question Porter is keeping track of the total number of books he has read over time. The line graph below shows the data.

A line graph titled Books Read Over Time has a horizontal x-axis labeled Months from 0 to 5 in increments of 1 and a vertical y-axis labeled Books from 0 to 10 plus in increments of 2. The graph consists of six plotted points connected by line segments from left to right. The coordinates of the plotted points are left-parenthesis 0 comma 0 right-parenthesis, left-parenthesis 1 comma 2 right-parenthesis, left-parenthesis 2 comma 4 right-parenthesis, left-parenthesis 3 comma 7 right-parenthesis, left-parenthesis 4 comma 9 right-parenthesis, and left-parenthesis 5 comma 11 right-parenthesis.

How many books did Porter read from month 2 to 5? Do not include the unit in your answer.

Question The bar graph below shows the number of men and women in different classes.

A side-by-side bar graph has a horizontal axis labeled Classes with the groups English, Biology, and Computer Science and a vertical axis labeled Students from 0 to 18 in increments of 2. Two vertical bars are above each of the horizontal axis labels, where the left bar represents men and the right bar represents women. The heights of the bars are as follows, where the Class is listed first, and the heights of the bars are listed next from left to right: English, 14 and 12; Biology, 17 and 15; and Computer Science, 12 and 17.

How many total students are in the computer science class? Do not include the units in your answer.

Question Gail is a car salesperson, who keeps track of her sales over time. The line graph below shows the data for the number of cars she sells per week.

A line graph titled Cars Sold Over Time has a horizontal x-axis labeled Weeks from 0 to 6 in increments of 1 and a vertical y-axis labeled Cars Sold from 0 to 16 in increments of 2. The graph consists of seven plotted points connected by line segments from left to right. The coordinates of the plotted points are as follows: left-parenthesis 0 comma 5 right-parenthesis; left-parenthesis 1 comma 6 right-parenthesis; left-parenthesis 2 comma 16 right-parenthesis; left-parenthesis 3 comma 3 right-parenthesis; left-parenthesis 4 comma 9 right-parenthesis; left-parenthesis 5 comma 8 right-parenthesis; and left-parenthesis 6 comma 4 right-parenthesis.

At what week were her sales 8? Do not include the unit in your answer.

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