MATHEMATICS MIDDLE SCHOOL

Can someone show me how to do Mean absolute deviationWhat is the means-to-MAD ratio of the two data sets, expressed as a decimal?
Data set Mean Mean absolute deviation (MAD)
1 10.7 2.4
2 13.7 2.5

Answers

Answer 1
Answer: To find the mean of a set, add up all of the numbers and divide by how many numbers you have. For the first set:
\mu=\frac{10.7+2.4}2=\frac{13.1}2=6.55
For the second set:
\mu=\frac{13.7+2.5}2=\frac{16.2}2=8.1

To find the mean absolute deviation, (MAD) find the mean of the distances of each number from the mean.
For the first set: 
MAD=\frac{|10.7-6.55|+|2.4-6.55|}2=\frac{4.15+4.15}2=\frac{8.3}2=4.15
For the second set:
MAD=\frac{|13.7-8.1|+|2.5-8.1|}2=\frac{5.6+5.6}2=\frac{11.2}2=5.6
Note that when you only have two data points the mean is directly between them, which is why the distances are the same.

The means-to-MAD ratio is simply that, divide one by the other and that's it.
For the first set:
6.55/4.15=1.57831325
For the second set:
8.1/5.6=1.44642857

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What does mean absolute deviation represent?

Answers

is the average of the absolute deviations from a central point. ... In this general form, the central point can be the mean, median, mode, or the result of another measure of central tendency.

A new one-year membership at Roswell tennis center costs $160.A registration fee of $28 is paid up front, and the rest is paid monthly.How much do new members pay each month?

Answers

Answer:

$11

Step-by-step explanation:

we can set up an equation to answer the question. a first payment of 28 plus some amount monthly for a year equals 160. so,

12x + 28 = 160

subtract 28 from both sides

12x = 132

divide by 12 and we get our answer

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What are exponents and how do I do them?

Answers

Exponents are actually really simple. They are the little numbers on top of numbers and represents powers, so if it was 2 to the power of 2 you multiply 2*2 since there is 2 2s.(
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Answers

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Answers

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