MATH 1342 CHAPTER 2 HANDOUT

MATH 1342 CHAPTER 2 HANDOUT - 7 Find the Upper Class Limit...

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DIRECTIONS FOR MAKING FREQUENCY DISTRIBUTION FOR CONTINUOUS DATA 1. Organize data in ascending order: 1.03 1.72 1.99 3.21 4.24 4.58 1.36 1.75 2.52 3.47 4.27 4.72 1.45 1.85 2.67 3.50 4.43 4.75 1.51 1.92 3.06 3.72 4.54 4.79 1.63 1.95 3.20 3.78 4.57 4.91 2. Determine the number of classes desired (5 to 20): 3. Find the minimum and maximum values: 4. Calculate the Class Width – (max – min)/# of classes and round up to a convenient number: 5. Pick the Lower Class Limit of the first class – a convenient number below the minimum: 6. Calculate the Lower Class Limits of the other classes – add the Class Width to the first Lower Class Limit to get the next Lower Class Limit and so on (Note – for the limits use the same number of decimal places as the data):
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Unformatted text preview: 7. Find the Upper Class Limit of the first class – one decimal place less than the second class’s lower limit: 8. Calculate the other Upper Class Limits – add the Class Width to the first Upper Class Limit to get the next Upper Class Limit and so on (Note – for the limits use the same number of decimal places as the data): 9. Split the data into the defined classes and count the frequency in each class: MAKE THE FREQUENCY DISTRIBUTION BACK AND GRAPH IT. CLASS FREQUENCY 1.00 – 1.69 1.70 – 2.39 2.40 – 3.09 3.10 – 3.79 3.80 – 4.49 4.50 – 5.19 Total 30 Be sure this totals to the number of data points: 10.Use the frequency distribution to draw a histogram:...
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