Question

fill in the blanks in the table below.

class limits	class boundaries	class midpoints
23.45 - 28.55	23.5 - 28.5
28.45 - 33.55	28.5 - 33.5
33.45 - 38.55	33.5 - 38.5
38.45 - 43.55	38.5 - 43.5
43.45 - 48.55	43.5 - 48.5
48.45 - 53.55	48.5 - 53.5

Explanation:

Step1: Calculate midpoint for 18.45-23.55

$\frac{18.45 + 23.55}{2} = 21$

Step2: Calculate midpoint for 23.45-28.55

$\frac{23.45 + 28.55}{2} = 26$

Step3: Calculate midpoint for 28.45-33.55

$\frac{28.45 + 33.55}{2} = 31$

Step4: Calculate midpoint for 33.45-38.55

$\frac{33.45 + 38.55}{2} = 36$

Step5: Calculate midpoint for 38.45-43.55

$\frac{38.45 + 43.55}{2} = 41$

Step6: Calculate midpoint for 43.45-48.55

$\frac{43.45 + 48.55}{2} = 46$

Step7: Calculate midpoint for 48.45-53.55

$\frac{48.45 + 53.55}{2} = 51$

Answer:

21, 26, 31, 36, 41, 46, 51