Make a stem and leaf plot of the following SSHA scores for 1

Make a stem and leaf plot of the following SSHA scores for 18 women. Do any scores look like outliner??

154 109 137 115 152 140 154 178 101

103 126 126 137 165 165 129 220 148

Solution

Hence stem plot is done as follows:

Stem and Leaf Plot:

IQR) is a measure of statistical dispersion, being equal to the difference between the third quartile (Q3) and first quartile (Q1), that is, IQR = Q3 - Q1.

An outlier in a distribution is a number that is more than 1.5 times the length of the box away from either the lower or upper quartiles. Specically, if a number is less than Q1 - 1.5×IQR or greater than Q3 + 1.5×IQR, then it is an outlier.

Hence here 220 is an outlier