Statistics, Test I: Chapters 1-4 p. 4 of (0) (I point) Would the Empirical Rale

Question

Statistics, Test I: Chapters 1-4 p. 4 of (0) (I point) Would the Empirical Rale be accurate when used for this data set? Why? 3. (1 point) When plotting frequencies tabulated from eategorical data, why wold a bar graph be preferable to a pie chart? 4 Use the below box plot to answer the follonring questions Student credits verses gender FEMALE MALE (a) (1 poiat) Which gender has a higher median mumber of credits (b) (I point) What is the approximate median number of credits for the females? (e) ( point) What is the approximate IQR of credits for the males? (d) (I point) Which gender has a largee range of credits? (e) (I point) How many outlies are there in this data set as indicated by the box plots? & Usiag the below table for our class to answer the following questions Points earned: / 7 points

Explanation / Answer

4

a)
based on the boxplots, we see that the middle dark black line is higher for female on y axis , hence female has higher number of credits

b)
Approximately 13

c)
we know that IQR = Q3-Q1 , where Q3 is 3rd quartile and Q1 is first quartile

this is represented by the boundaries of the box

hence IQR for males is

= 12-10 = 2 (approx)

d) Range is the difference of Maximum and minimum values . This can be seen visually too. We see that the whiskers(the extreme horizontal lines) are higher for males , hence range is hifgher for males. This also means that the spread of credits for males is higher

e) as we dont see any points outside the whiskers there are no outliers in the graph

Please note that we can answer only 1 question at a time , as per the answering guidelines

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