Question

find the mean of following distribution x 5 6 7 8 9 y 4 8 14 11 3

Answer 1

Answer:

ARITHMETIC MEAN OR MEAN OR AVERAGE :  

The arithmetic mean of a set of observations is obtained by dividing the sum of the values of all observations by the total number of observations .

Mean = Sum of all the observations / Total number of observations .

MEAN = Σfixi / Σfi

[‘Σ’ Sigma means ‘summation’ ]

FREQUENCY DISTRIBUTION TABLE IS IN THE ATTACHMENT  

From the table : Σfixi = 281 , Σfi = 40

MEAN = Σfixi / Σfi  

MEAN = 281/40 = 7.025  

MEAN = 7.025  

Hence, the MEAN value is 7.025 .

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Step-by-step explanation:

Answer 2

Step-by-step explanation:

5+6+7+8+9+4+8+14+11+3 =75

total number =10

=75/10 =7.5