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The first quartile, or the lower quartile, is the value such that a quarter of the observations are smaller and three quarters are larger.The third quartile, or the upper quartile, is the value such that three quarters of the observations are smaller and a quarter are larger.

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โˆ™ 2016-05-11 09:56:40
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Q: What is the difference between the first and third quartile?
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Related questions

What is the name for the difference for the difference between the third quartile and first quartile in a five- number summary?

Interquartile range.


What is the name for the difference between the first quartile and the third quartile in a five number summary?

75th percentile


What is the name for the difference between the third quartile and first quartile in a five number summary?

interquartile range or IQR


What is the name of the difference between the third and the first quartile?

Interquartile range denoted IQR.


What percent of the observations in a distribution lie between the first quartile and the third quartile?

50%


In which area of calculation quartile deviation is used?

Graphing to determine difference between third and first quartile as well as to find the median between the two. Also known as semi-interquartile range.


What is the difference between a percentile and a quartile?

A quartile divides a grouping into four. The first quartile will have the first 25% of the group, the second quartile will have the second 25% of the group, the third quartile will have the third 25% of the group and the last quartile will have the last 25% of the group. For example if a classroom had 20 students who had all taken a test, you could line them up, the top 5 marks would be in the first quartile, the next five would be in the second quartile, the next 5 would be in the third quartile, and the 5 students with the lowest marks would be in the last quartile. Similarly, a percentile divides a grouping, except the group is divided into 100. Each 1% represent 1 percentile.


How do you find the interquartile range in a set of data?

how do you find the interquartile range of this data


What is resistant measure?

A measure that is not influenced by outliers. Median and IQR are examples of resistant measures. Median is the middle of the ordered list. IQR, which stands for inter quartile range, is the difference between the first quartile and third quartiles.


What is the interquartile range of a number?

the IQR is the third quartile minus the first quartile.


How do you calculate first and third quartile?

first quartile (Q1) : Total number of term(N)/4 = Nth term third quartile (Q3): 3 x (N)/4th term


How do you solve a third quartile?

Roughly speaking, finding the third quartile is similar to finding the median. First, use the median to split the data set into two equal halves. Then the third quartile is the median of the upper half. Similarly, the first quartile is the median of the lower half.


How do you calculate the third quartile for a mean of 110 and a standard deviation of 15?

If this is the only information you have, the answer would be somewhere around 125. Usually, you would find the third quartile by first finding the median. Then find the median of all of the numbers between the median and the largest number, which is the third quartile.


Is the third quartile greater than the first quartile with a data set consisting of 1000 values that are all different?

The value of any element in the third quartile will be greater than the value of any element in the first quartile. But both quartiles will have exactly the same number of elements in them: 250.


Show you an example of a box and whisker plot?

range: 32; first quartile 17; third quartile: 34


How do you find the 1st quartile and 3rd quartile of 36 and 43 and 45 and 52 and 55 and 61 and 70?

First Quartile = 43 Third Qaurtile = 61


Can the first quartile equal the third quartile?

yes, if all the data is the same number; when the range is zero. * * * * * That is not true. You need 25% of the values to be small, then 50% identical values, followed by 25% large values. Then the lower (first) quartile will be the same as the upper (third) quartile. The inter-quartile range (IQR) will be zero but the overall range can be as large as you like.


The first quartile of a data set is 72 and the third quartile is 92. Which of these values in the data set is an outlier?

41


The first quartile of a data set is 52 and the third quartile is 72. Which of these values in the data set is an outlier?

21


The first quartile of a data set is 32 and the third quartile is 52. Which of these values in the data set is an outlier?

83


How do you find out the width of a box and whisker plot?

The sides of the box are the quartile values: the left is the first quartile and the right is the third quartile. The width, therefore is the interquartile range.


What is the first quartile of this data set 6 47 49 15 43 41 7 36?

The first quartile is the value such that a quarter of the data are smaller than that value and three quarters are larger. Since there are 8 observations, the quartile will be between the second and the third smallest values. Therefore, Q1 = (7+15)/2 = 11


Find the first and third quartiles Q1 and Q3 what set of numbers 347 242 146 391 249 567 277 218 319?

242 is the first quartile. 347 is the third quartile.


What does interquartile mean in math?

If a set of data are ordered by size, then the lower quartile is a value such that a quarter of the data are smaller than it. The upper quartile is a value such that a quarter of the data are larger than it. Interquartile means between the quartiles.


What is the average value of a data set?

What is a visual Representation of the five number summary minimum first quartile medium third quartile and maximum