Question

fill in the blanks in the table below.

class limits	class boundaries	class midpoints	frequency	cumulative frequency
-	23.5 - 28.5	26	3	5
-	28.5 - 33.5	31	0	5
-	33.5 - 38.5	36	6	11
-	38.5 - 43.5	41	4	15
-	43.5 - 48.5	46	3	18
-	48.5 - 53.5	51	1	19

Explanation:

Step1: Calculate lower limit from boundary

Lower limit = Lower boundary + 0.5

Step2: Calculate upper limit from boundary

Upper limit = Upper boundary - 0.5

Step3: Apply to each row

18.5+0.5=19, 23.5-0.5=23 → 19-23; 23.5+0.5=24, 28.5-0.5=28 →24-28; 28.5+0.5=29, 33.5-0.5=33→29-33; 33.5+0.5=34, 38.5-0.5=38→34-38; 38.5+0.5=39, 43.5-0.5=43→39-43; 43.5+0.5=44, 48.5-0.5=48→44-48; 48.5+0.5=49, 53.5-0.5=53→49-53

Answer:

19-23, 24-28, 29-33, 34-38, 39-43, 44-48, 49-53