Question

Lower Class Limit	Upper Class Limit	Frequency	Class midpoint	Frequency times midpoint
50	54	15	52
55	59	17
60	64	11
65	69	12	67	804
70	74	7	72	504
75	79	4	77	308
80	84	2	82	164
85	89	1	87	87
90	94	1	92	92

Fill in the table above

Part B: Now add up the last column of the table above.

Part C: Now add up the third column of your table.

Part D: Now divide your answer to Part B by your answer to Part C. This is the mean for the Grouped Frequency Data Table (GFDT).

Answer 1

Solution:

Part A: Fill in the table above

Lower Class Limit	Upper Class Limit	Frequency	Class midpoint	Frequency times midpoint
50	54	15	52	780
55	59	17	57	969
60	64	11	62	682
65	69	12	67	804
70	74	7	72	504
75	79	4	77	308
80	84	2	82	164
85	89	1	87	87
90	94	1	92	92

Part B: Now add up the last column of the table above.

Ans: 4390

Part C: Now add up the third column of your table.

Ans : 70

Part D: Now divide your answer to Part B by your answer to Part C. This is the mean for the Grouped Frequency Data Table (GFDT).Part C: Now add up the third column of your table.

Ans: ( 4390 ) / ( 70 ) = 62.7143

Thank You..!!

I give my 100% hope you satisfied with my answer Please like it ..

I am waiting for feedback ...!!