The following table shows the frequency distribution for the golf scores recorded during the 2012 Masters tournament:

Question:

Score Frequency

278–282 ………………. 6

283–287 ………………. 12

288–292 ………………. 21

293–297 ………………. 16

298–302 ………………. 6

303–307 ………………. 1

a. Calculate the approximate average golf score for the tournament.

b. Calculate the approximate variance and standard deviation for the tournament.

Distribution
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