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MM207_Unit_2_Project_Form 1

# MM207_Unit_2_Project_Form 1 - Section2.1:(Note:...

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MM207 Unit 2 Instructor-Graded Project Form 1 Section 2.1: Frequency Distributions and their Graphs (Note: Scatter plots will be revisited on Unit 8.) 34 / 40  Great job 1. The School Action Society asked its members how many hours they had worked during  the previous week in part-time jobs. The following data lists the number of hours spent  working during the previous week. 6 6 6 4 6 6 9 8 6 3 7 6 6 7 6 6 7 6 6 8 6 7 8 4 1a. Using these data construct a frequency table with the included columns. Round the  relative frequencies to three decimal places. (7 points)        Hours Tally Frequency f Midpoint Relative  Frequency 3 - 4 ||| 3 3+4   =    2 3.5   3   =  24 0.125 5 - 6 ||||| ||||| ||| 13 5+6  =   2 5.5 13  =  2 0.542 7 - 8 ||||| || 7 7+8  =   2 7.5 7  = 24 0.292 9 - 10 | 1 9+10  =   2 9.5 1  = 24 0.042 ( chart is great ) 1b. Using Excel construct a frequency histogram for the frequency table in part a. Use the  midpoint  as the horizontal axis and frequency f as the vertical axis.

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MM207_Unit_2_Project_Form 1 - Section2.1:(Note:...

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