BUS-597 - Chapter One Thru Three you must show your calculations to get credit.

Question

BUS-597 - Chapter One Thru Three you must show your calculations to get credit. Five Questions are required Name: Date:Total Points 100 s a mileage economy test involving 80 cars. The frequency distribution A researcher conduct describing average miles per gallon (mpg) appears in the following table. Average mpg 15 up to 20 20 up to 25 25 up to 30 0 up to 35 5 up to 40 O up to 45 Frequency 15 30 15 10 7 3 Construct the corresponding relative frequency, cumulative frequency, and cumulative tive frequency distributions. tow many of the cars got less than 30 mpg? What percentage of the cars got at least 20 but than 25 mpg? What percentage of the cars got less than 35 mpg? What percent got 35 or more?

Explanation / Answer

Here the frequncy, cumulative freuncy and cumulative relative frequecny. all datas are given below.

Number of cars who get less than 30 mpg = 60

at least 20 but less than 25 mpg = 30/80 = 0.375

Percentage of car got less than 35mpg = 0.875

Percentage more than 35 mpg = 0.125

Average mpg Frequency cumulative frequency Relative Frequncy cumulative relative frequency 15-20 15 15 0.1875 0.1875 20-25 30 45 0.375 0.5625 25-30 15 60 0.1875 0.75 30-35 10 70 0.125 0.875 35-40 7 77 0.0875 0.9625 40-45 3 80 0.0375 1 80 1

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