Mathematics: Study the data set above. What is the mean (average)? Round to the nearest whole number.

Study the data set above. What is the mean (average)?

Ответ:

johnzman10

01.10.2021

Mathematics

40,30,80,60,80,30,50,40,60,90,30

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Ответ:

camila68

24.01.2020

Mathematics

Step-by-step explanation:

$\because \triangle \: DEF \sim \triangle NPQ \\ \\ \therefore \: \frac{EF}{PQ} = \frac{DF}{NQ}... (csst) \\ \\ \therefore \: \frac{d}{ \frac{11}{2} } = \frac{7}{9} \\ \\ \therefore \: \frac{2d}{ 11 } = \frac{7}{9} \\ \\ \therefore \: d = \frac{11 \times 7}{2 \times 9} \\ \\ \therefore \: d = \frac{77}{18} \\$

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Study the data set above. What is the mean (average)? Round to the nearest whole number.

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