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Data Set: 6, 1, 4, 2, 3, 4, 6, 8, 9 a. Calculate the mean, median,...

Data Set: 6, 1, 4, 2, 3, 4, 6, 8, 9

a. Calculate the mean, median, mode, range, variance and standard deviation (using either formula).

b. Compare the two groups in terms of central tendency and variability. What conclusions can you draw from the data in regards to average number of time a student posted, variability of postings, etc?

math   Statistics-And-Probability   
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Answer #1

Firs arranve the data from Ascending order 2 3,44 6 6,3 number of abscrvdtisns (n) : Median三Middle most observation Median : g O bscrvc hat Mode Meda Med ian Skeacdi Thee foe Mediao is a better mcesure Casure ndanlYne i Standard deviHon Varnare The data is discrcate so measue at dispursin sue Cental tendaney is usd to deteymine enrd aveyas vJucob the givin dute 4 mcasut os dispersiho is used to determinc Vacidten ob the duta vom average veluc Avee numbrss tine astudat Postd is 478 ith variablidy 8 ie nmbof posts hvin

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