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19 March, 19:28

Rachel wants to know the mean price of all the sunglasses on a display rack.

She randomly selects 8 pairs of sunglasses and records their prices. Their prices are $14, $12, $20, $25, $20, $12, $18, and $15.

What is the best estimate of the mean price of all the sunglasses on the rack?

$ [?]

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  1. 19 March, 19:58
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    The mean price of the sunglasses is $17.

    If you add up all the values, you will get a total of 136. Now, divide this total by the total number of values.

    There are 8, so 136 divided by 8 is 17. That is the mean.
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