Question

pls answer this question ​

Answer 1

Step-by-step explanation:

(1) mean=sum of all / observations

=382/8

=47.75

(2) mean =(382+62)/9

=444/9

=49.33

Answer 2

$(i) \frac{50 + 44.5 + 48.7 + 45.1 + 50.4 + 43 + 51 + 49.3}{8}$

$\: \: \: = \frac{382}{8}$

$\: \: \: = 47.75$

$(ii) \frac{50 + 44.5 + 48.7 + 45.1 + 50.4 + 43 + 51 + 49.3 + 62}{9}$

$\: \: \: \: = \frac{444}{9}$

$\: \: \: \: = 49.33$

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