taccurale Mode 39,0 the nunerical daka.is the awemge o yares the Reotban plaar T

Question

taccurale Mode 39,0 the nunerical daka.is the awemge o yares the Reotban plaar The accompanying data set contains quiz scores for 12 students in a chemistry class: 18, 15, 5, 8, 15, 20, 2, 16, 10, 12, 20, 15. 9) a. Find a measure of central tendency that separates the data into two groups such that each group measure. consists of 50% of the scores above and 50% of the scores below that b. Find a measure of central tendency that represents the quiz score that occurs most often. c. Find a measure of central tendency that represents the average of the 12 quiz scores. A. 10) The following data represent a random sample of 15 complaints registered with the customer service department of a store. Determine the mode complaint. messy store excessive waiting time messy store excessive waiting time defective product messy store other other rude personnel messy store excessive waiting time excessive waiting time excessive waiting time xcessive waiting time messy store

Explanation / Answer

The quiz scores fo 12 students in a chemisty class 18,15,5,8,15,20,2,16,10,12,20,15.

A measure of central tendency that separates the data into two groups such that each group consists of 50% of the score above and 50% of the scores below that level is median.

Here after arranging the data in increasing order we get  2 5 8 10 12 15 15 15 16 18 20 20

Now the 6th and 7th observations are 15 and 15.

so the median is (15+15)/2=15

b) Measure of central tendency that represents the quiz scores that occurs most often is mode

Here the most occurred value is 15. hence mode is 15

c)the measure of central tendency that represents the average of 12 scores = (18+15+5+8+15+20+2+16+10+12+20+15)/12=13

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