L4-Measure of Central Location.pdf

  Where: ∑fx is the sum of the product o f X t i m e s t h e f r e q u e n c y. Σf is the sum of the frequencies = n ( the sample size) = ∑ f x / ∑ f = 6125 /166 = 36.898 years X is the class midpoint ΣfX is the sum of the product of the class interval midpoint ti...

  Where: ∑fx is the sum of the product o f X t i m e s t h e f r e q u e n c y. Σf is the sum of the frequencies = n ( the sample size) = ∑ f x / ∑ f = 6125 /166 = 36.898 years X is the class midpoint ΣfX is the sum of the product of the class interval midpoint times the c l a s s f r e q u e n c y. Σf is the sum of the class frequencies = n (the sample size)  ∑𝒙 𝒏 𝟐 𝟑 𝟔 𝟖 𝟏𝟐 𝟏𝟓 𝒙 ̄= ( ∑ 𝒙 ) / 𝒏 = ( 𝟐 + 𝟑 + 𝟔 + 𝟖 + 𝟏 𝟐 + 𝟑 𝟎 ) / 𝟔 𝟔 𝟕 𝟔𝟔 =𝟏𝟎.𝟏𝟔  Median for ungrouped data  The Mode Properties of the mode  quiz