4 years ago

Which measure of center would be BEST to use for the following set of data?

Mathematics

2 answers:

DerKrebs [107]4 years ago

5 0

Answer:

Median

Step-by-step explanation:

This is because if you used the mean it would be higher than the median because there is an outlier (78)

Because the data is skewed right, the mean would be affected

Sophie [7]4 years ago

5 0

Answer:

Median

Which is 26.5

Step-by-step explanation:

19, 22, 24, 26, 27, 30, 31 ,78

78 is an outlier which makes mean a wrong estimate of the average.

Mode is not available

So the best option is Median

Median is (26+27)/2 = 26.5

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miss Akunina [59]

Answer:

p = - 14

Step-by-step explanation:

Using the rules of exponents

$a^{m}$ ÷ $a^{n}$ = $a^{(m-n)}$

$(a^{m}) ^{n}$ = $a^{mn}$

Note 81 = 9² and 729 = 9³

Given

$(81)^{-4}$ ÷ $(729)^{2-p}$

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= $9^{-8-6+3p}$

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Since bases on both sides are equal then equate the exponents

4p = 3p - 14 ( subtract 3p from both sides )

p = - 14

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