math211tutorial - Weekly wages of 65 employees at the...

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Example: The following data represents the age of the building (in years) of a given area in Lefkosa. Class Intervals Tally Frequency Class Boundary Class Mark Cumulative Frequency Relative Cumulative frequency Percentage Relative Cumulative Frequency 2 - 7 8 - 13 14 - 19 20 - 25 26 - 31 32 - 37 Total a) Construct the frequency table. b) Draw the relative cumulative frequency Histogram. c) Draw the percentage Ogive. d) Estimate the percentage of houses whose age is under 15 years. 10 12 11 11 18 14 37 15 27 21 15 7 2 12 11 15 25 4 3 9 16 10 24 2 20 18 3 12 29 12
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Example: The following data shows a frequency distribution of the
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Unformatted text preview: Weekly wages of 65 employees at the P&R Company. Wages Number of employees Class Boundary Class Mark Cumulative Frequency 250.00 - 259.99 8 260.00 - 269.99 10 270.00 - 279.99 16 280.00 - 289.99 14 290.00 - 299.99 10 300.00 - 309.99 5 310.00 - 319.99 2 Total 65 a) Construct the frequency Histogram. b) Construct a cumulative frequency distribution. c) Draw the Ogive. d) Evaluate the number of employees earing; i) Less than $288.00 per week. ii) At least $263.00 per week but less than $275.00 per week....
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math211tutorial - Weekly wages of 65 employees at the...

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