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 males (1000 cells/μl) frequency 0 - 99 1 100 - 199 47 200 - 299 83 300 - 399 19 400 - 499 0 500 - 599 1 600 - 699 0 identify the lower class limits (in 1000 cells/μl). 0, 100, 200, 300, 400, 500, 600 (type integers or decimals. do not round. use ascending order.) identify the upper class limits (in 1000 cells/μl). 99, 199, 299, 399, 499, 599, 699 (type integers or decimals. do not round. use ascending order.) identify the class width (in 1000 cells/μl). 100 (type an integer or a decimal. do not round.) identify the class midpoints (in 1000 cells/μl). 49.5, 149.5, 249.5, 349.5, 449.5, 549.5, 649.5 (type integers or decimals. do not round. use ascending order.) identify the class boundaries (in 1000 cells/μl). (type integers or decimals. do not round. use ascending order.)

Explanation:

Step1: Find lower - class boundaries

Subtract 0.5 from the lower - class limits. For the first class with lower - class limit 0, the lower - class boundary is \(0 - 0.5=- 0.5\). For the second class with lower - class limit 100, the lower - class boundary is \(100 - 0.5 = 99.5\), and so on.

Step2: Find upper - class boundaries

Add 0.5 to the upper - class limits. For the first class with upper - class limit 99, the upper - class boundary is \(99+0.5 = 99.5\). For the second class with upper - class limit 199, the upper - class boundary is \(199 + 0.5=199.5\), and so on.

Answer:

-0.5, 99.5, 199.5, 299.5, 399.5, 499.5, 599.5, 699.5