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#.