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Chapter 3: Q 3-25. (page 102)

Find the

a. Mean b. median c. mode

For the mean and the median, round each answer to one more decimal place than that used for the observations.

The Beatles. The English rock band, The Beatles, was formed in Liverpool in 1960. There are 12studio albums that are considered part of their core catalogue. In the article, "Length of The Beatles Songs" . T. Koyama lists the album title, date of release, and number of songs on each album. Here are the album names and numbers of songs.

Short Answer

Expert verified

a)14.6b)14c)14

Step by step solution

01

Step 1. Given information. 

We have given data:14,14,13,14,14,14,14,13,30,6,17,12.

02

Step 2. Mean of the data.  

Mean

=14+14+13+14+14+14+14+13+30+6+17+1212=17512=14.6

03

Step 3. Median of the data.  

Arrange the data in increasing order : 6,12,13,13,14,14,14,14,14,14,17,30

Median

=6th+7th2=14+142=282=14

04

Step 4. Mode of the data. 

The greatest frequency is the mode of the data set .

The greatest frequency is 6. Hence the mode is 14.

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Most popular questions from this chapter

Find the

a. Mean b. median c. models

For the mean and the median, round each answer to one more decimal place than that used for the observations.

Hurricanes. An article by D. Schaefer et al. reported on a long-term study of the effects of hurricanes on tropical streams of the Luquillo Experinental Forest in Puerto Rico. The study shows that Hurricane Hugo had a significant impact on stream water chemistry. The following table shows a sample of 10ammonia fluxes in the first year after Hugo. Data are in kilograms per hectare per year.

96,116,66,57,147,54,147,88,175,154

Identify the two most commonly used measures of center for

quantitative data. Explain the relative advantages and disadvantages

of each.

Identify the statistic that is used to estimate

(a) A population mean.

(b) A population standard deviation.

Which measure of variation is preferred when

(a) the mean is used as a measure of center?

(b) the median is used as a measure of center?

Of the mean, median and mode which is the only one appropriate for use with quantitative data.
See all solutions

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