Histogram The accompanying histogram depicts outcomes of digits from the Florida Play 4 lottery. What is the major flaw in this histogram?

Short Answer

Expert verified

The given histogram is plotted with the vertical axis, not beginning with a 0. Thus, this tends to misrepresent the actual frequency of each digit, and the differences in the frequencies are exaggerated.

Step by step solution

01

Given information

A histogram is plotted, which shows the frequency of the digits 0–9 in the Florida Play 4 lottery.

02

Define a histogram

A histogram is a plot used to graphically represent a frequency distribution based on a continuous range of numbers. All the class frequencies are plotted on the vertical axis, while all the class intervals (midpoints/limits) are plotted on the horizontal axis.

03

Interpretation of the given histogram

The frequency axis shouldalways begin with a 0to show the accurate frequency of each class. If the vertical axis does not begin with a 0, the deviations among each frequency are exaggerated or enlarged. This results in false interpretations.

The given histogram showing the frequencies of each digit in a lottery doesnot begin with a 0 on the vertical axis. This leads tomagnified differences between each frequency and gives a wrong picture.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

In Exercises 33–36, use the range rule of thumb to identify the limits separating values that are significantly low or significantly high

Foot Lengths Based on Data Set 2 “Foot and Height” in Appendix B, adult males have foot lengths with a mean of 27.32 cm and a standard deviation of 1.29 cm. Is the adult male foot length of 30 cm significantly low or significantly high? Explain.

In Exercises 5–20, find the range, variance, and standard deviation for the given sample data. Include appropriate units (such as “minutes”) in your results. (The same data were used in Section 3-1, where we found measures of center. Here, we find measures of variation.) Then answer the given questions.

Foot Lengths Listed below are foot lengths in inches of randomly selected Army women measured in the 1988 Anthropometric Survey (ANSUR). Are the statistics representative of the current population of all Army women?

10.4 9.3 9.1 9.3 10.0 9.4 8.6 9.8 9.9 9.1 9.1

Critical Thinking. For Exercises 5–20, watch out for these little buggers. Each of these exercises involves some feature that is somewhat tricky. Find the (a) mean, (b) median, (c) mode, (d) midrange, and then answer the given question.

California Smokers In the California Health Interview Survey, randomly selected adults are interviewed. One of the questions asks how many cigarettes are smoked per day, and results are listed below for 50 randomly selected respondents. How well do the results reflect the smoking behavior of California adults?

9 10 10 20 40 50 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

In Exercises 5–8, express all z scores with two decimal places.

ATL Data Speeds For the Verizon airport data speeds (Mbps) listed in Data Set 32 “Airport Data Speeds” in Appendix B, the highest speed of 77.8 Mbps was measured at Atlanta’s (ATL) international airport. The complete list of 50 Verizon data speeds has a mean of x = 17.60 Mbps and a standard deviation of s = 16.02 Mbps

a. What is the difference between Verizon’s data speed at Atlanta’s international airport and the mean of all of Verizon’s data speeds?

b. How many standard deviations is that [the difference found in part (a)]?

c. Convert Verizon’s data speed at Atlanta’s international airport to a z score.

d. If we consider data speeds that convert to z scores between -2 and 2 to be neither significantly low nor significantly high, is Verizon’s speed at Atlanta significant?

In Exercises 17–20, use the following cell phone airport data speeds (Mbps) from Sprint. Find the percentile corresponding to the given data speed.

0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.7 0.8 1.0 1.1 1.1 1.2 1.2 1.6 1.6 2.1 2.1 2.3 2.4 2.5 2.7 2.7 2.7 3.2 3.4 3.6 3.8 4.0 4.0 5.0 5.6 8.2 9.6 10.6 13.0 14.1 15.1 15.2 30.4

2.4 Mbps

See all solutions

Recommended explanations on Math Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free