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.
blood platelet count of females (1000 cells/μl) frequency
100 - 199 25
200 - 299 91
300 - 399 26
400 - 499 1
500 - 599 3
identify the lower class limits.
100, 200, 300, 400, 500
(type integers or decimals. do not round. use ascending order.)
identify the upper class limits.
199, 299, 399, 499, 599
(type integers or decimals. do not round. use ascending order.)
identify the class width.
100
(type an integer or a decimal. do not round.)
identify the class midpoints.
149.5, 249.5, 349.5, 449.5, 549.5
(type integers or decimals. do not round. use ascending order.)
identify the class boundaries.
(type integers or decimals. do not round. use ascending order.)

Explanation:

Step1: Find lower class boundaries

Subtract 0.5 from lower class limits. So for 100, 200, 300, 400, 500, we get 99.5, 199.5, 299.5, 399.5, 499.5.

Step2: Find upper class boundaries

Add 0.5 to upper class limits. So for 199, 299, 399, 499, 599, we get 199.5, 299.5, 399.5, 499.5, 599.5.

Answer:

99.5, 199.5, 299.5, 399.5, 499.5, 599.5