Consider the following matrix of observation. 9 5 3 13 5 14 9 3 (a) Find the sample mean M of these observation vectors. Enter the two components of M in order into the answer box below, separated by a comma. (b) Find the total variance of the sample.

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Consider the following matrix of observation.
9
5
5 14
3
13 9 3
(a) Find the sample mean M of these observation vectors. Enter the two components of M in order into the
answer box below, separated by a comma.
(b) Find the total variance of the sample.
Transcribed Image Text:Consider the following matrix of observation. 9 5 5 14 3 13 9 3 (a) Find the sample mean M of these observation vectors. Enter the two components of M in order into the answer box below, separated by a comma. (b) Find the total variance of the sample.
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