Question

Statistics:

Construct a stem and leaf diagram, a frequency distribution table, plus develop a bar chart, pie chart, histogram, polygon and an ogive from the following data set.

When you construct the pie charts, bar graphs, etc. Use the calculation of 2^K to find the number of classes you will need to construct the frequency distribution table. You will need to use lower class limits, lower-class boundaries, midpoints upper-class boundaries, upper-class limits, frequency, relative frequency, and cumulative frequency.

DATA:

90, 92, 94, 100, 100, 91, 95, 96, 93, 23, 31, 57, 42, 59, 48, 58, 49, 37, 62, 75, 83, 88, 89, 70, 71, 79, 85, 77, 69, 82, 85.

Answer 1

Stem and leaf diagram:

Select midpoint and frequency to make frequency polygon

Select class interval and cumulative frequency to make Ogive histogram

Select class interval and frequency again to make pie chart

Formula Ref: