How do you find the mean and median of 136, 129, 128, 122, 134, 120?

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Answer 1 · 2017-02-27T12:47:52

$"Mean"~~"128.17 (2dp), Median="128.5$ .

Recall that, $"Mean="sumx_i/n,$

$={120+122+128+129+134+136}/6=769/6~~128.17 (2dp).$

To find the Median, let us arrange the data in ascending order :

$120, 122, 128, 129, 134, 136.$

Hence, the Median is the observation situated at the Middle
Place.

As, we have, two such observations, namely, $128" and "129,$ the

median will be their Average.

$:." Median="(128+129)/2=128.5$ .