# mathematics

How is the interquartile range of a data set different from the standard deviation of a data set?

1. 👍
2. 👎
3. 👁
1. The IQR is often seen as a better measure of spread than the range as it is not affected by outliers. The variance and the standard deviation are measures of the spread of the data around the mean. They summarise how close each observed data value is to the mean value.

1. 👍
2. 👎

## Similar Questions

1. ### Chem

Am i correct for the following? 1. "quick data" such as that of a mass measurement on a balance located at the far side of the lab, can be recorded on a paper scrap and then transferred to the report sheet at your lab station.

2. ### Math

Find the mean of the data set. If necessary, round to the nearest tenth. 15.8, 14.9, 17.6, 13.4. A) 15.7 ***** B) 16.2 C) 16.7 D) 19.6 Erin wrote the following set of numbers. 37, 22, 37, 19, 34, 22, 37, 22, 32, 26, 30, 22 What is

3. ### mathematics

1 The dot plot shows the lengths of the 12 trailers sold at a store last month. 505x172 Which statement about the data is true? A The interquartile range is 7, and the range is 17. B The interquartile range is 7, and the range is

4. ### algebra

Two similar data sets are being compared. The standard deviation of Set A is 4.8. The standard deviation of Set B is 6.5. Which statement about the data sets is true? a)The mean of the data in Set B is greater than the mean of the

1. ### college math

20. Calculate the range, variance, and standard deviation of the following data set: 5, 5, 6, 6, 6, 8, 8, 8, 8, 10, 10, 11, 12, 12, 20 (Points: 5) Range = 15; Variance = 225; Standard Deviation = 7.5 Range = 3.85; Variance = 14;

2. ### statistics

The box plot below summarize the distributions of SAT verbal and math scores among students at an upstate New York high school. 300 400 500 600 700 800 data Whic of the following statements is false? 1. The range of the math

3. ### Maths

Find the interquartile range for a set of data if 75% of the data are above 2.6 and 25% of the data are above 3.7.

4. ### math

Using the following set of data, calculate the lower quartile, the upper quartile, and the interquartile range. 20, 22, 25, 28, 29, 30, 32, 33, 34 Be sure to show your work for finding: the lower quartile the upper quartile the

1. ### Statistics

A college statistics class conducted a survey of how students spend their money. They asked 25 students to estimate how much money they typically spend each week on fast food. They determined that the mean amount spent on fast

2. ### Statistics

Which of the following is NOT sensitive to extreme values? A) the range B) the standard deviation C) the interquartile range D) the coefficient of variation I pick B the standard deviation

3. ### MATHEMATICS HELP PLZ

1. Which statement about the data is true? A. the interquartile range is 7, and the range is 17 B. the interquartile range is 7, and the range is 11 C. the interquartile range is 2.75, and the range is 17 D. the interquartile

4. ### math !

using the following set of data, calculate the lower quartile, the upper quartile, and the interquartile range.20, 22, 25, 28, 29, 30, 32, 33, 34 ? NEED HELP !