Question

Identify the lower class limits, upper class limits, class width, class midpoints, and class boundaries for the given frequency distribution. Also identify the number of individuals included in the summary Age (yr) when award was won Frequency 20-23 27 24-27 32 28-31 15 32-35 2 36-39 4 40-43 44-47 2 Identify the lower class limits 1.0.000 (Type integers or decimals. Do not round. Use ascending order.) Identify the upper class limits (Type integers or decimals. Do not round. Use ascending order.) Identify the class width. (Type an integer or a decimal. Do not round.) Identify the class midpoints. (Type integers or decimals. Do not round. Use ascending order.)

Answer 1

Solution-

Lower class limits-

20, 24, 28, 32, 36, 40, 44

upper class limits-

23, 27, 31, 35, 39, 43, 47

Class width is 4

Class midpoints are-

21.5, 25.5, 29.5, 33.5, 37.5, 41.5, 45.5

Class boundaries are-

19.5, 23.5, 27.5, 31.5, 35.5, 39.5, 43.5, 47.5

Number of individuals are -

84

---------------

Class Frequency (f) Mid value (x) (1) (2) (3) 20 - 23 27 21.5 24 - 27 32 25.5 28 - 31 15 29.5 32-35 2 33.5=A 36 - 39 4 37.5 40 - 43 2 41.5 44 - 47 2 45.5 n = 84