2. Describing Data with Tables and Graphs

A dot plot shows the number of shirts sold in each size: Small ($3$ dots), Medium ($5$ dots), Large ($2$ dots), and Extra Large ($4$ dots). Which histogram best represents the same data?

Given a graph that displays the frequency of data within specified intervals using adjacent rectangular bars, which type of graph is being shown?

Which of the following best describes a histogram that has most of its data concentrated on the left with a long tail extending to the right?

Which of the following best describes a histogram that represents a set of data that is left-skewed?

"Average Income The following data represent the median household income (in dollars) for the 50 states and the District of Columbia in 2017. With the first class having a lower class limit of 40,000 and a class width of 5000: f the data.

e. Describe the shape of the distribution."

Which of the following best describes the shape of a histogram that has most of its data concentrated on the left with a long tail extending to the right?

Suppose you are given a histogram with class intervals $0-10$, $10-20$, $20-30$, and $30-40$, and the frequencies for these intervals are $5$, $12$, $18$, and $10$, respectively. What is the frequency of the modal class (the class with the most observations)?

In Exercises 9–18, construct the histograms and answer the given questions.

Analysis of Last Digits Use the frequency distribution from Exercise 21 in Section 2-1 to construct a histogram. What can be concluded from the distribution of the digits? Specifically, do the heights appear to be reported or actually measured?

True or False: The shape of the distribution shown is best classified as skewed left.

In Exercises 9–18, construct the histograms and answer the given questions.

Burger King Dinner Service Times Use the frequency distribution from Exercise 18 in Section 2-1 to construct a histogram. Using a strict interpretation of the criteria for being a normal distribution, does the histogram appear to depict data from a population with a normal distribution?

Win 4 Lottery Shown below is a histogram of digits selected in California’s Win 4 lottery. Each drawing involves the random selection (with replacement) of four digits between 0 and 9 inclusive.

c. Identify the frequencies, then test the claim that the digits are selected from a population in which the digits are all equally likely. Is there a problem with the lottery?

Given a frequency histogram showing the number of students who scored within each $10$-point interval on a test, which of the following statements is correct about the distribution of scores?

Use the frequency histogram

d. describe any patterns with the data..

In Exercises 5 and 6, construct the dotplot.

Pulse Rates Listed below are pulse rates (beats per minute) of females selected from Data Set 1 “Body Data” in Appendix B. All of those pulse rates are even numbers. Is there a pulse rate that appears to be an outlier? What is its value?

In Exercises 9–18, construct the histograms and answer the given questions.

Tornadoes Use the frequency distribution from Exercise 16 in Section 2-1 to construct a histogram. Does the histogram appear to be skewed? If so, identify the type of skewness.