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Chapter 2: Q.3 (page 125)

The data are the prices of different laptops at an electronics store. Round each value to the nearest ten. 249,249,260,265,265,280,299,299,309,319,325,326,350,350,350,365,369,389,409,459,489,559,569,570,610

Short Answer

Expert verified

The prices concentrated at 55,56,57and61are considered as outliners as they are much far away from rest of the prices of the laptops.

Step by step solution

01

Content Introduction

Consider the given data for prices of different laptops.

02

Content Explanation

The steps to create step plot are written below:

  1. Divide each observation of data into stems and leaf.
  2. Write stems in vertical line from smallest to largest.
  3. Draw a vertical line to the right of the stems
  4. Write leaves in increasing order next to their corresponding stem.
03

Conclusion

For the given data, stem plot for the rounded data is constructed

From above stem plot it is observed that prices of laptop is different from most of the laptops.

The prices concentrated at the table, are considered as outliners as they are much far away from rest of the prices of the laptops.


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Most popular questions from this chapter

Use the following information to answer the next nine exercises: The population parameters below describe the full-time equivalent number of students (FTES) each year at Lake Tahoe Community College from 1976鈥�1977 through 2004鈥�2005.

鈥� 渭 = 1000 FTES

鈥� median = 1,014 FTES

鈥� 蟽 = 474 FTES

鈥� first quartile = 528.5 FTES

鈥� third quartile = 1,447.5 FTES

鈥� n = 29 years

What percent of the FTES were from 528.5 to 1447.5? How do you know?

The students in Ms. Ramirez鈥檚 math class have birthdays in each of the four seasons. Table 2.40 shows the four seasons, the number of students who have birthdays in each season, and the percentage (%) of students in each group. Construct a bar graph showing the number of students.

Use the following information to answer the next nine exercises: The population parameters below describe the full-time equivalent number of students (FTES) each year at Lake Tahoe Community College from 1976鈥�1977 through 2004鈥�2005.

鈥� 渭 = 1000 FTES

鈥� median = 1,014 FTES

鈥� 蟽 = 474 FTES

鈥� first quartile = 528.5 FTES

鈥� third quartile = 1,447.5 FTES

鈥� n = 29 years

Compare the IQR for the FTES for 1976鈥�77 through 2004鈥�2005 with the IQR for the FTES for 2005-2006 through 2010鈥�2011. Why do you suppose the IQRs are so different?

When the data are skewed left, what is the typical relationship between the mean and median?

In a study collecting data about the repair costs of damage to automobiles in a certain type of crash test, a certain model of car had $1700in damage and was in the 90th percentile. Should the manufacturer and the consumer be pleased or upset by this result? Explain and write a sentence that interprets the 90th percentile in the context of this problem.
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