Range - The positive difference between the largest and smallest values in a set of data.

To find the range: First, you have to reorder the numbers from least to greatest. Second, you have to subtract the least number from the greatest number.

Eg. 1. Set of data: 6, 2, 9, 4, 3 a) 2, 3, 4, 6, 9 b) 9 - 2 = 7 Therefore, the range is 7.

1. Set of data: -8, -1, -3, -5 a) -8, -5, -3, -1 b) (-1) - (-8) = 7

Therefore, the range is 7.

Find the range:

1. Set of data: 7, 4, 3, 6, 2, 5, 8, 3 a) 2, 3, 3, 4, 5, 6, 7, 8 b) 8 - 2 = 6 Therefore, the range is 6.

2. Set of data: 11, 8, 8, 5, 7, 6, 7, 6, 6 a) 5, 6, 6, 6, 7, 7, 8, 8, 11 b) 11 - 5 = 6 Therefore, the range is 6.

3. Set of data: -4, 3, -1, 0, 2 a) -4, -1, 0, 2, 3 b) 3 - (-4) = 7 Therefore, the range is 7.

Outlier - Value that is much smaller or larger than the other data values. Also note that, a data set may contain one or more outliers, or none at all.

To find the outlier: First, you have to reorder from least to greatest. Second, identify the number(s) which are much greater or lower than the other values.

Find the outliers of the following:

Here is a link on range. Here is a video of range and outliers. Enjoy!

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ReplyDeleteGood post Marie ! I liked how you made some words stand out. But next time, use more colours .

ReplyDeleteNice post Marie! I like how you made some words really pop out and how your post is very neat. Maybe next time add more colours to catch peoples eyes more but other then that great post!

ReplyDelete