Select the outlier in the data set. 8, 69, 71, 72, 74, 79, 81, 91

Identify data set: Step 1: Identify the data set and look for numbers that stand out. Data set: 8, 69, 71, 72, 74, 79, 81, 91 Looking at the numbers, 8 is significantly lower than all other numbers which are closely grouped together.Calculate range: Step 2: Calculate the range of the rest of the numbers to confirm the outlier. Range calculation for 69, 71, 72, 74, 79, 81, 91: Maximum = 91, Minimum = 69 Range = Maximum - Minimum = 91 - 69 = 22Compare deviation: Step 3: Compare the suspected outlier's deviation from the nearest number. Deviation of 8 from 69 (the next smallest number): Deviation = 69 - 8 = 61 This deviation is much larger than the range of the main group (22), confirming 8 as an outlier.

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Select the outlier in the data set. $\newline$ $8, 69, 71, 72, 74, 79, 81, 91$

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Grade 7

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Q. Select the outlier in the data set.

\newline

8, 69, 71, 72, 74, 79, 81, 91

Identify data set: Step $1$ : Identify the data set and look for numbers that stand out. $\newline$ Data set: $8, 69, 71, 72, 74, 79, 81, 91$ $\newline$ Looking at the numbers, $8$ is significantly lower than all other numbers which are closely grouped together.
Calculate range: Step $2$ : Calculate the range of the rest of the numbers to confirm the outlier. $\newline$ Range calculation for $69, 71, 72, 74, 79, 81, 91$ : $\newline$ Maximum = $91$ , Minimum = $69$ $\newline$ Range = Maximum - Minimum = $91 - 69 = 22$
Compare deviation: Step $3$ : Compare the suspected outlier's deviation from the nearest number. Deviation of $8$ from $69$ (the next smallest number): Deviation = $69 - 8 = 61$ This deviation is much larger than the range of the main group ( $22$ ), confirming $8$ as an outlier.