independent practice
directions: place a check in the box provided for the type of graph that would be most appropriate for the description of the data trying to be displayed. some descriptions may have more than one graph.
1. a graph to show how a child grows over a period of time.
2. a graph showing the percentages of the students earning a’s, b’s, c’s, d’s, and f’s for the school year.
3. a graph showing the categories and the amounts of what someone spends their paycheck on (ex: food, rent, shopping etc.)
4. a graph to show how much time (in hours) 8th graders spend watching tv each week.
8. the sale of geckos compared to the total number of pets in a pet store.
5. the number of 8th graders that have traveled to west virginia, new york, maryland, new jersey, and north carolina.
6. the heights of all the 8th graders.
7. you want to show the variability of students’ test scores
8. the population of virginia divided into age groups (0-20, 21-40, 41-60)
9. which display allows you to find the median age of people who plan to vote in this year’s election?
10. which display allows you to find the test scores each student had on a language arts test?
table with columns: pie, pictograph, line, line plot, stem and leaf, histogram, bar graph, box plot; rows 1-10

Question

Accepted Answer

### 1. A graph to show how a child grows over a period of time
# Brief Explanations:
To show change over time, a line graph is most appropriate as it can display the trend of a child's growth (e.g., height or weight) as time progresses.
# Answer:
Line (check the box under "Line" for item 1)

### 2. A graph showing the percentages of the students earning A’s, B’s, C’s, D’s, and F’s for the school year
# Brief Explanations:
A pie graph is suitable for showing the proportion (percentage) of different categories (grades) within a whole (all students' grades).
# Answer:
Pie (check the box under "Pie" for item 2)

### 3. A graph showing the categories and the amounts of what someone spends their paycheck on (ex: food, rent, shopping etc.)
# Brief Explanations:
A pie graph can show the proportion of each spending category relative to the total paycheck, or a bar graph can show the amount for each category. Pie is good for proportions, bar for amounts. But pie is common for budget breakdowns by proportion.
# Answer:
Pie (check the box under "Pie" for item 3) (or Bar graph, but pie is more for showing parts of a whole here)

### 4. A graph to show how much time (in hours) 8th graders spend watching TV each week
# Brief Explanations:
A line plot (or histogram, or bar graph) can be used. A line plot can show the distribution of hours, but a bar graph could also show the number of students in each time category. Alternatively, a line plot is good for showing individual data points or frequency of values.
# Answer:
Line plot (check the box under "Line plot" for item 4) (or Histogram/Bar graph, but line plot is good for showing the spread of data)

### 5. The number of 8th graders that have traveled to West Virginia, New York, Maryland, New Jersey, and North Carolina
# Brief Explanations:
A bar graph is ideal to compare the number of students (frequency) for each different location (category).
# Answer:
Bar graph (check the box under "Bar graph" for item 5)

### 6. The heights of all the 8th graders
# Brief Explanations:
A histogram can show the distribution of heights (frequency of height ranges), a stem - and - leaf plot can show the actual data values and their distribution, or a box plot can show the summary statistics (median, quartiles). Histogram is good for showing the shape of the height distribution.
# Answer:
Histogram (check the box under "Histogram" for item 6) (or Stem and leaf/Box plot)

### 7. You want to show the variability of students’ test scores
# Brief Explanations:
A box plot shows the median, quartiles, and outliers, which helps in understanding the variability (spread) of the data. A stem - and - leaf plot also shows the data distribution which can indicate variability. But box plot is a standard choice for showing variability.
# Answer:
Box plot (check the box under "Box plot" for item 7) (or Stem and leaf)

### 8. The population of Virginia divided into age groups (0 - 20, 21 - 40, 41 - 60)
# Brief Explanations:
A pie graph can show the proportion of each age group in the total population, or a bar graph can show the number of people in each age group. Pie is good for showing parts of a whole (the total population).
# Answer:
Pie (check the box under "Pie" for item 8) (or Bar graph)

### 9. Which display allows you to find the median age of people who plan to vote in this year’s election?
# Brief Explanations:
A box plot shows the median (the line inside the box), and a stem - and - leaf plot can be used to find the median by ordering the data. But a box plot directly displays the median. Also, a histogram with cumulative frequency can be used, but box plot is the most straightforward for seeing the median.
# Answer:
Box plot (check the box under "Box plot" for item 9) (or Stem and leaf)

### 10. Which display allows you to find the test scores each student had on a language arts test?
# Brief Explanations:
A stem - and - leaf plot shows each individual data point (test score) in an organized way, so you can see each student's score. A line plot can also show individual scores, but stem - and - leaf is more compact for this purpose.
# Answer:
Stem and leaf (check the box under "Stem and leaf" for item 10) (or Line plot)

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QUESTION IMAGE

Question

Explanation:

1. A graph to show how a child grows over a period of time

Answer:

2. A graph showing the percentages of the students earning A’s, B’s, C’s, D’s, and F’s for the school year