Interpreting Quartiles And Interquartile Range

Interpreting Quartiles And Interquartile Range. It shows the same median quartiles and interquartile range as we manually calculated # interquartile range in R summary () procedure > x =c (5 101215182225273035) > summary (x) Min 1st Qu Median Mean 3rd Qu Max 500 1275 2000 1990 2650 3500 >.

PDF fileInterpreting quartiles SOLUTIONS This table gives some statistics on net annual household income in the UK for single adults Use the table to complete the sentences below Lower Quartile £10270 Median £14628 Upper Quartile £20802 The Guardian 20102011 The average income is £14628 The top 25% of people earn more than £20802.

Understanding Quartiles, Median and Interquartile Range

There are 5 values below the median (lower half) the middle value is 64 which is the first quartile There are 5 values above the median (upper half) the middle value is 77 which is the third quartile The interquartile range is 77 – 64 = 13 the interquartile range is the range of the middle 50% of the data.

InterQuartile Range (IQR)

How to Find Interquartile Range The interquartile range IQR is the range in values from the first quartile Q 1 to the third quartile Q 3 Find the IQR by subtracting Q 1 from Q 3 IQR = Q 3 Q 1 How to Find the Minimum The minimum is the smallest value in a sample data set.

How to calculate Quartile and Interquartile Range?

So our data set is 6 3 8 11 7 The first thing we need to do is order the data like this 3 6 7 8 11 Pause the video here to see if you can.