Let's solve each question based on the
line plot provided in the image. A line plot shows data points along a number line, with an "X" representing each student's score.
---
Step-by-step Analysis of the Line Plot:
We’ll go through each score and count how many X’s (students) are at each percentage:
-
88%: 4 X's → 4 students
-
89%: 5 X's → 5 students
-
90%: 3 X's → 3 students
-
91%: 1 X → 1 student
-
92%: 0 X's → 0 students
-
93%: 1 X → 1 student
-
94%: 1 X → 1 student
-
95%: 2 X's → 2 students
-
96%: 0 X's → 0 students
-
97%: 3 X's → 3 students
-
98%: 1 X → 1 student
-
99%: 0 X's → 0 students
-
100%: 0 X's → 0 students
---
Now let’s answer each question:
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1. How many students received a score of 94%?
Look at the 94% mark: There is
1 X.
✔ Answer: 1
---
2. What was the highest score in the class?
Find the rightmost score with an X: The highest is
98%.
✔ Answer: 98%
---
3. What was the lowest score in the class?
Find the leftmost score with an X: The lowest is
88%.
✔ Answer: 88%
---
4. How many students received a score in the 80s?
Only scores from 88% to 89% are in the 80s.
- 88%: 4 students
- 89%: 5 students
Total = 4 + 5 =
9 students
✔ Answer: 9
---
5. How many students received a score in the 90s?
Scores from 90% to 99%:
- 90%: 3
- 91%: 1
- 92%: 0
- 93%: 1
- 94%: 1
- 95%: 2
- 96%: 0
- 97%: 3
- 98%: 1
- 99%: 0
Add them up:
3 + 1 + 0 + 1 + 1 + 2 + 0 + 3 + 1 + 0 =
13 students
✔ Answer: 13
---
6. How many students scored 93% or less?
Include all scores ≤ 93%:
- 88%: 4
- 89%: 5
- 90%: 3
- 91%: 1
- 92%: 0
- 93%: 1
Total = 4 + 5 + 3 + 1 + 0 + 1 =
14 students
✔ Answer: 14
---
7. How many students are in Mr. Bradley's science class?
Add up
all the X’s:
- 88%: 4
- 89%: 5
- 90%: 3
- 91%: 1
- 92%: 0
- 93%: 1
- 94%: 1
- 95%: 2
- 96%: 0
- 97%: 3
- 98%: 1
- 99%: 0
- 100%: 0
Total = 4+5+3+1+0+1+1+2+0+3+1+0+0 =
22 students
✔ Answer: 22
---
✔ Final Answers:
1.
1
2.
98%
3.
88%
4.
9
5.
13
6.
14
7.
22
Let me know if you'd like this formatted for printing or as a completed worksheet!
Parent Tip: Review the logic above to help your child master the concept of dot plot worksheet 7th grade.
![Compare Mean, Median, Range Using Dot Plots Worksheets [PDF] (6.SP ...](/images2/dot-plot-worksheet-7th-grade/dot-plot-worksheet-7th-grade-38.png)
