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1. Intro to Stats and Collecting Data(0)
- Intro to Stats
  (0)
2. Describing Data with Tables and Graphs(0)
3. Describing Data Numerically(0)
4. Probability(0)
5. Binomial Distribution & Discrete Random Variables(0)
6. Normal Distribution and Continuous Random Variables(0)
- Standard Normal Distribution
  (0)
- Probabilities & Z-Scores w/ Graphing Calculator
  (0)
7. Sampling Distributions & Confidence Intervals: Mean(0)
- Introduction to Confidence Intervals
  (0)
- Confidence Intervals for Population Mean
  (0)
8. Sampling Distributions & Confidence Intervals: Proportion(0)
- Sampling Distribution of Sample Proportion
  (0)
- Confidence Intervals for Population Proportion
  (0)
9. Hypothesis Testing for One Sample(0)
- Steps in Hypothesis Testing
  (0)
10. Hypothesis Testing for Two Samples(0)
11. Correlation(0)
- Scatterplots & Intro to Correlation
  (0)
- Correlation Coefficient
  (0)
12. Regression(0)
13. Chi-Square Tests & Goodness of Fit(0)
14. ANOVA(0)

2. Describing Data with Tables and Graphs

Dot Plots

2. Describing Data with Tables and Graphs

Dot Plots: Videos & Practice Problems

Video Lessons Practice Worksheet

Dot Plots Practice Problems

21 problems

1PRACTICE PROBLEM

A group of $25$ people was surveyed about the number of cups of coffee they drink per day. The results are:

$0 1 2 2 3 1 0 2 3 4 2 1 2 3 0 1 2 4 1 2 3 1 4 2 3$

Create a dot plot for this data and describe any patterns you notice.

2PRACTICE PROBLEM

The stem-and-leaf plot with two rows for each stem shows the heights, in inches, of a group of plants. Display this data in a dot plot.

Stem-and-leaf plot displaying plant heights in inches, showing data organization and key for interpretation.

What is one key difference between how the stem-and-leaf plot and the dot plot display the data?

3PRACTICE PROBLEM

The following are the noise levels recorded in units of decibels measured from $20$ different classrooms:

$48 55 55 52 49 53 51 61 54 50 57 53 55 52 53 49 64 54 58 65$

Construct a dot plot for this data set. What pattern do you observe from the distribution?

4PRACTICE PROBLEM

Which of the following best describes the plot below?

A dot plot showing data points along a horizontal axis labeled from 70 to 90, with varying vertical arrangements.

5PRACTICE PROBLEM

Based on the dot plot below, what is the maximum data value?

Dot plot showing data points along a horizontal axis ranging from 60 to 85, with the highest value at 80.

6PRACTICE PROBLEM

The table below lists the heights in meters and the number of stories for the $9$ buildings in Dubai. Construct a scatter plot using this data and describe any trends you notice.

Table displaying heights in meters and corresponding stories for 99 Dubai buildings, used for data analysis.

7PRACTICE PROBLEM

The following data set shows the number of hours $19$ employees worked last week:

$32 35 40 38 36 37 39 41 34 33 42 36 38 40 37 39 35 34 41$

Summarize the data by creating a box and whisker plot.

8PRACTICE PROBLEM

The ages in years of $14$ participants in a workshop are:

$22 25 28 21 24 27 23 26 29 22 25 28 24 27$

Draw a box-and-whisker plot for this data set.

9PRACTICE PROBLEM

The following are the weekly study hours for a group of $21$ college students:

$3 lines Line 1: 12.5 14.2 16.8 10.1 13.7 15.3 17.6 blank Line 2: 11.9 18.4 14.9 13.2 16.1 19.7 12.9 blank Line 3: 15.9 17.2 11.5 13.5 18.0 11.3 16.4 blank$

Draw a box and whisker plot for this data set.

10PRACTICE PROBLEM

The box and whisker plot shown represents the number of movies a group of $60$ people watched last month. What is the likelihood, as a percent, that a randomly selected person watched fewer than $2$ movies last month?

Box-and-whisker plot showing the number of movies watched by 6060 people last month, with a focus on values below 22.

11PRACTICE PROBLEM

The box and whisker plot shown represents the weekly sales in units of its $28$ sales representatives. What percentage of the sales representatives sold more than $55$ units in a week?

Box-and-whisker plot showing weekly sales data, with a range from 42 to 80 units sold.

12PRACTICE PROBLEM

What should you do if you have multiple data points with the same value in a dot plot?

13PRACTICE PROBLEM

Which of the following is a benefit of using a dot plot?

14PRACTICE PROBLEM

What is a potential disadvantage of using a dot plot for a large dataset?

15PRACTICE PROBLEM

In a dot plot, Category M has 9 dots and Category N has 4 dots. What is the difference in quantity between the two categories?

16PRACTICE PROBLEM

Two teams have the following dot plots for goals scored. Team A: [1, 2, 2, 3, 4]. Team B: [1, 2, 3, 3, 4]. Which team has more players scoring 2 goals?

17PRACTICE PROBLEM

Given the dataset [1, 2, 2, 4, 4, 4, 5], how many dots will be stacked above the number 4 in the dot plot?

18PRACTICE PROBLEM

In a dot plot, how would you represent the dataset [4, 4, 4, 5, 6]?

19PRACTICE PROBLEM

What does each dot in a dot plot represent?

20PRACTICE PROBLEM

Which type of data is best suited for a dot plot?

21PRACTICE PROBLEM

In what scenario might a histogram be more effective than a dot plot?