Theme: Frequency distribution tables\

Part I

1. Explain what would be the problem of setting limits like: 20-22, 22-24, 24-26, 26-28 and 28-30.

Part II

Below is the distribution of the ages of a sample of people who regularly use the new communication platforms Zoom and Teams to hold virtual work meetings or to communicate with family and friends.

Ages	Number of people
28-31	211
32-35	180
36-39	502
40-43	499
44-47	201

Indicate:

a) width of classes

b) number (amount) of sample data

c) number of classes

Part III

1. Prepare a frequency distribution table to present the blood pressure of 32 patients who visited the El Buen Samaritano Hospital today in the morning: 58, 71, 16, 55, 45, 88, 33, 41, 78, 66, 69, 63 , 39, 40, 53, 75, 47, 33, 81, 74, 70, 33, 29, 74, 71, 66, 63, 70, 22, 45, 76, 90. Just set the limits and frequency on the board.

PartIV

Below is the weight distribution (expressed in pounds) of a group of young people:

Boundaries Limits	Lmits	Class mark	Absolute frequency	Accumulated frequency	Absolute relative frequency	Accumulated relative frequency
	98 - 104		22
	105-111		13
	112-118		19
	119-125		18
	126-132		5
	133-139		3

Instructions:

1. Complete the frequency distribution table in all its parts.

Answer:

1st class mark of the third class

accumulated frequency of the fifth class

upper border of second class

class width

number of classes

How many youth weigh up to 132 pounds?

What percentage of youth weigh between 119 and 125 pounds?

Construct a histogram to present the exercise data (weight of young people).

Write a short paragraph describing the weight distribution of the young people in this exercise