EASY WAY TO CALCULATE MODE (STATISTICS)

A STEP BY STEP EASY METHOD OF CALCULATING MODE IS ILLUSTRATED HERE.
BOTH DISCRETE AND GROUPED FREQUENCY DISTRIBUTION IS EXPLAINED IN AN EASY MANNER.
THIS IS A QUICK METHOD OF LEARNING HOW TO CALCULATE MODE.

1. COMBINED MEAN AND STANDARD DEVIATION, M0DE( STATISTICS) GRADE 11 MATH COLLEGE MATH SUMAN MATHEWS  

2. PREVIEW HERE, WE LEARN HOW TO CALCULATE MODE FOR A DISCRETE SET OF OBSERVATIONS AND ALSO FOR A FREQUENCY DISTRIBUTION. THE FORMULAE FOR COMBINED MEAN AND COMBINED STANDARD DEVIATION ARE ALSO DISCUSSED.

3. FOR A DISCRETE SET OF VALUES OR AN UNGROUPED FREQUENCY DISTRIBUTION, MODE IS THE VALUE WITH THE LARGEST FREQUENCY. FOR A GROUPED FREQUENCY DISTRIBUTION,   l = lower limit of the modal class c = width of the modal class  

4. Mode = 3 median – 2 mean Question 1 Find the mode of 2,1, 1, 2, 3, 2, 5, 4, 6, 4, 1, 2, 3 Mode = 2

5. Question 2 find the mode of the following frequency distribution x f 14 14 15 26 16 18 17 9 18 2 19 1 20 1 Mode = 15( value with the highest frequency)

6. Question 3 The daily wages of 30 employees are as follows C I f 0 -10 1 10 -20 8 20- 30 10 30- 40 5 40- 50 4 50- 60 2    

7. QUESTION 4 FIND a, b FROM THE FOLLOWING DATA C I f 10 - 20 5 20 -30 a 30 -40 15 40 -50 b 50 -60 7 Mode = 37 Total frequency = 47 27 + a + b = 47 a + b = 20 b = 20 -a

8.       37 = 45 - a  

9. Combined mean and standard deviation        

10. A group of 35 values has mean 80 and standard deviation 4. A second sample of 65 values has mean 70 And standard deviation 3. Find the mean and standard deviation of the combined sample of 100 values      

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