1. FREQUENCY DISTRIBUTION GRADE 10

2. HOBBIESGrade 10 Students TALLY Dancing Singing Basketball Reading

3. Frequency – is how often something occurs. Ex. Sam played football on Every Saturday morning Every Saturday afternoon Every Thursday afternoon

4. 124126134138142143136 131138135128131146136 133120136126137139137 141131127130132138142 140136132133138140144 E.g. The following are heights in centimeters of 35 students.

5. Step 1. Find the range. Range = Largest quantity – Smallest quantity

6. Step 2. Determine the approximate number of classes using the sturges’formula: k = 1+3.3 log N Where k = approximate number of classes Log N = logarithm of the total number of observations or raw data Round off the value of k to the nearest integer.

8. Step 4. Determine the classes starting with the lowest class.

9. Step 4. Use the smallest quantity for the lowest limit of the first class.

10. 124126134138142143136 131138135128131146136 133120136126137139137 141131127130132138142 140136132133138140144 E.g. The following are heights in centimeters of 35 students.

11. Step 4. If the data are whole numbers, subtract 1 from the interval i, then add the difference to the lower limit to obtain the upper limit of the first class.

12. Step 4. If the data are decimal numbers, subtract 0.1 from the class interval size, if these data are written to the nearest tenth.

13. Step 4. If they are written to the nearest hundredths subtract 0.01. Add the interval i to the lower limit and the upper limit of the class

14. Step 4. obtain the lower limit and upper limit of the next class. Follow this procedure until a class that contains the largest quantity is obtained.

15. Step 5. Tally the quantities

16. Step 6.Determine the frequency f for each class by counting the tally.

18. 1. The following are the weight in kilograms of 56 students. 56.556.75655.856.156.359.1 56.657.456.957.358.657.157.3 55.557.057.257.358.7 58.2 56.857.456.858.558.058.158.3 59.257.159.357.458.657.358.1 59.257.257.158.558.258.958.4 58.157.657.557.957.6 58.258.357.6 57.857.757.8

19. 124126134138142143136 131138135128131146136 133120136126137139137 141131127130132138142 140136132133138140144 E.g. The following are heights in centimeters of 35 students.