Math, asked by aafiyamansuri04, 4 months ago

14 is the mean of 7 observations 20 is the mean of 8 observations the mean of a combined set is given by

Answers

Answered by amazingkurl

5

Answer:

17.2

Step-by-step explanation:

combined mean

=(14×7 +20×8)÷(7+8)

= 258 ÷15

=17.2

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