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Chapter 2: Q. 54 (page 134)

What word describes a distribution that has two modes?

Short Answer

Expert verified

Bimodal describes a distribution that has two modes.

Step by step solution

01

Definition

Mode is one of the measures of central tendency and it is described as the most frequency value in the data.

02

Explanation

In statistics, the mode is one of the measures of central tendency and it is described as the most frequent value in the data. There can be more than one mode in a data set as long as those values have the same frequency and that frequency is the highest. A data set with two modes is called bimodal. For example, Five real estate exam scores are 430,430,480,480,495. The data set is bimodal because the scores 430and480each occur twice.

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Most popular questions from this chapter

What is the difference between cumulative relative frequency and relative frequency for each data value?

Given the following box plot:

Figure 2.41

a. which quarter has the smallest spread of data? What is that spread?

b. which quarter has the largest spread of data? What is that spread?

c. find the interquartile range (IQR).

d. are there more data in the interval 5鈥�10 or in the interval 10鈥�13? How do you know this?

e. which interval has the fewest data in it? How do you know this?

i. 0鈥�2

ii. 2鈥�4

iii. 10鈥�12

iv. 12鈥�13

v. need more information

Twenty-five randomly selected students were asked the number of movies they watched the previous week. The results are as follows:

Construct a box plot of the data.

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

Use the following information to answer the next three exercises: State whether the data are symmetrical, skewed to the left, or skewed to the right.

1;1;1;2;2;2;2;3;3;3;3;3;3;3;3;4;4;4;5;5
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