CK-12-Basic Probability and Statistics Concepts - A Full Course

(Marvins-Underground-K-12) #1

5.3. Grouped Data to Find the Mean http://www.ck12.org


TABLE5.18:


Mileage Number of Cars
[ 0 − 40 , 000 ) 3
[ 40 , 000 − 80 , 000 ) 6
[ 80 , 000 − 120 , 000 ) 10
[ 120 , 000 − 160 , 000 ) 4
[ 160 , 000 − 200 , 000 ) 2


  1. What is the summation of the values ofmffor each class?

  2. What is the value ofN?

  3. Calculate the mean number of miles on a car.

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