Mathematics, 30.09.2019 17:40, megaboy

For which distributions is the median the best measure of center? select each correct answer.

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answered: tiannahwlit

The 3rd one- the median is the exact centre
Similar logic may also apply to D as the median is close to the centre

answered: 1162

Answer with explanation:

Let me start answering this Question like this.

Why Median came into existence because Mean was not good enough to provide better solution to Statistical Data Set.

What, is Median.Median of a discrete data set ,is Middle value in the data set when arranged in ascending or descending order.Suppose you have to find whether wages of Employee in certain Organization is appropriate or not.You will use two measure of variation for that Purpose: 1. Mean 2.Median

Consider Bar graph of Data set 1

Variate in set builder form ={10,15,20,25,30,35,30,25,20,15,10}

When arranged in ascending order ={10,10,15,15,20,20,25,25,30,30,35}=11(Odd)

Mean

$=\frac{235}{11}\\\\=21\frac{4}{11}$

Median =Mid value =20

Median - Smallest variate =20 -10=10

Largest Variate - Median =35-20=15

→→→Consider Bar Graph of Data set 2

Variate in set builder form ={22,18,20,26,30,28,20,9,9,5,4,3,3,2}

When arranged in ascending order ={2,3,3,4,5,9,9,18,20,20,22,26,28,30}=14(Even)

Mean

$=\frac{199}{14}\\\\=14\frac{3}{14}$

Median

$=\frac{9+18}{2}\\\\13.5$

Median - Smallest variate =13.5 - 2=11.5

Largest Variate - Median =30 -13.5=16.5

→→Consider Bar Graph of Data set 3

Variate in set builder form ={4,3,4,,4,5,5,5,4,5,5}

When arranged in ascending order ={3,4,4,4,4,5,5,5,5,5}=10(Even)

Mean

$=\frac{44}{10}\\\\=4.4$

Median

$=\frac{4+5}{2}\\\\4.5$

Median - Smallest variate =4.5 -3=1.5

Largest Variate - Median =5-4.5=0.5

Consider Bar graph of Data set 4

Variate in set builder form ={11,12,13,14,15,18,19,24,28,15,12,11}

When arranged in ascending order ={11,11,12,12,13,14,15,15,18,19,24,28}=12(even)

Mean

$=\frac{192}{12}\\\\=16$

Median

$=\frac{14+15}{2}\\\\14.5$

Median - Smallest variate =14.5 - 11=3.5

Largest Variate - Median =28 - 14.5=13.5

Drawing Box plot of four data set

Found that, for data set 3, median lies in the center.

Option 2 and Option 3

For which distributions is the median the best measure of center? select each correct answer.

answered: Guest

That is so true, i can’t believe how true this is

answered: Guest

the answer is. -82562234434584

step-by-step explanation:

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