Cookies A stemplot of the same cookies summarized in Exercise 1 is created, and the first row of that stemplot is 1 | 99. Identify the values represented by that row of the stemplot.

Chocolate Chips

Frequency

18-20

6

21-23

11

24-26

18

27-29

4

30-31

1

Short Answer

Expert verified

The two values represented by 1|99 are 19 and 19, respectively.

Step by step solution

01

Given information

A stemplot is constructed for a frequency distribution showing frequencies of chocolate chips found in a cookie.

Chocolate chips

Frequency

18-20

6

21-23

11

24-26

18

27-29

4

30-32

1

One of the rows for the stemplot is given as 1|99.

02

Key of a stemplot

In a stemplot, the stems are arranged to the left of a vertical bar, and the leaves are arranged to its right.

When the observations are split into two parts, stems and leaves, the stems usually represent the tens or the hundreds part of the value, and the leaves represent the ones part of the corresponding stem.

The key to a stemplot is the representation of one of these values.

03

Interpret the row elements of the stemplot

The row of the stemplot is given as 1|99.

The value to the left of the vertical line is the stem, and the value(s) to the right side of the line is(are) the set of leaves corresponding to the stem.

As the stemplot is constructed from the frequency distribution that includes observations in two digits, it is inferred that the stem must consist of the tens digit while the leaf the units digits of an observation.

Thus, the row represents two values, 19 and19.

Therefore, the given row represents the number of chocolate chips equal to 19 and 19.

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

Relative frequency distribution use percentages to construct the relative frequency distribution corresponding to the accompanying frequency distribution for McDonald’s dinner service times.

Expanded Stemplots A stemplot can be condensed by combining adjacent rows. We could use a stem of “6–7” instead of separate stems of 6 and 7. Every row in the condensed stemplot should include an asterisk to separate digits associated with the different stem values. A stemplot can be expanded by subdividing rows into those with leaves having digits 0 through 4 and those with leaves having digits 5 through 9. Using the body temperatures from 12 AM on Day 2 listed in Data Set 3 “Body Temperatures” in Appendix B, we see that the first three rows of an expanded stemplot have stems of 96 (for leaves between 5 and 9 inclusive), 97 (for leaves between 0 and 4 inclusive), and 97 (for leaves between 5 and 9 inclusive). Construct the complete expanded stemplot for the body temperatures from 12 AM on Day 2 listed in Data Set 3 “Body Temperatures” in Appendix B.

Cumulative Frequency Distributions. In Exercises 21 and 22, construct the cumulative frequency distribution that corresponds to the frequency distribution in the exercise indicated.

Exercise 6 (Age of Best Actor When Oscar Was Won)

Linear Correlation Coefficient In Exercises 9–12, the linear correlation coefficient r is provided. Use Table 2-11 on page 71 to find the critical values of r. Based on a comparison of the linear correlation coefficient r and the critical values, what do you conclude about a linear correlation?

Using the data from Exercise 6 “Bear Measurements,” the linear correlation coefficient is r = 0.980.

Computers As a quality control manager at Texas Instruments, you find that defective calculators have various causes, including worn machinery, human error, bad supplies, and packaging mistreatment. Which of the following graphs would be best for describing the causes of defects: histogram; scatterplot; Pareto chart; dot plot; pie chart?

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