PART 1 DISTRIBUTIONS FOR QUANTITATIVE DATA (DOTPLOTS) earning Objective .For the

Question

PART 1 DISTRIBUTIONS FOR QUANTITATIVE DATA (DOTPLOTS) earning Objective .For the distribution of a quantitative variable, describe the overall pattern (shape center, and spread) and striking deviations from the pattern. 1) Use the case-value graph below to answer each of the following questions 2011/2012 Hatchbacks so.0 40.0 0.0 20.0 Make & Model a) How many hatchbacks get 23 mpg in the city? What is/are the mpg rate(s) that occur most frequently (this measure of center is the mode)? b) c) Which mpg rate is the middle rate (this measure of center is the median)?

Explanation / Answer

b) the rate is30 appears most of the time .

c) Mini cooper has the middle rate, which is almost 30

2.

a) 3

b)30 and 26

c) 26 is the median.

we fisrt calculate total observation, as it is odd ,we subtract one and divide it by two, whici is 21 here.

Now, we find where this 21st value lies, thats the median.

3.

a) range = highest value - lowest vaue = 44-16 = 28

b) we can clearly see 18-3 is the main clump of the data.

c) 1103/43 = 25.65 [If you need formula, let me know below]

d) the rates, 42 and 46 are outliers.

Thank you.for any doubts, comment below.

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