The answer is as shown in the attachment which is the first diagram (on the left) on the second row which is highlighted in the attachment
That is the only figure which when rotated about the axis will form a cylindrical form as required.
The top two will form into a solid sphere and the last would form into a solid cylinder and not the one as required.
Mean of the first golfer = 89
Mean of the second golfer = 87
Range of the first golfer = 11
Range of the second golfer = 8
Explanation:
First golfer scores 88, 90, 86, 89, 96 and 85.
Sum of the scores of first golfer = 88 + 90 + 86 + 89 + 96 + 85 = 534
Number of observation of first golfer = 6
Mean of the first golfer =
Mean of the first golfer = 89
Range of the first golfer = Highest score – Lowest score
= 96 – 85
Range of the first golfer = 11
Second golfer scores 91, 86, 88, 84, 90 and 83.
Sum of the scores of second golfer = 91 + 86 + 88 + 84 + 90 + 83 = 522
Number of observation of second golfer = 6
Mean of the second golfer =
Mean of the second golfer = 87
Range of the second golfer = Highest score – Lowest score
= 91 – 83
Range of the second golfer = 8
Comparing the golfer's skills:
Mean of first golfer is greater than Mean of second golfer. (i.e. 89 > 87)
Range of first golfer is greater than Range of second golfer. (i.e. 11 > 8)
Thus, first golfer have more skills than second golfer.
