A study was conducted to determine the level of awareness of the residents of a certain municipality on the causes of hypertension. The accompanying table shows the results with respect to the gender of the respondents.

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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2. A study was conducted to determine the level of awareness of the residents of a certain municipality on the causes of hypertension. The accompanying table shows the results with respect to the gender of the respondents.

MATHEMATICS IN THE MODERN WORLD
Practice Problems
The following data are ages of infants (in months) at which they walked alone
These sample data were obtained from two populations, A and B.
Sample A
9.8 11
9.5 9.8 10
13
10
10
9.
10
9.5
Sample B
12 9.5 9.5
14 12
14
13
12
12
14
14
13
Compare the two groups as to their mean, median, mode, and midrange.
Central tendency
В
A
Mean
Median
Mode(s)
Midrange
2. A study was conducted to determine the level of awareness of the residents of a
certain municipality on the causes of hypertension. The accompanying table shows
the results with respect to the gender of the respondents.
Male
Female
Weighted
(n = 32) (n = 48)
Mean
Indicator
X2
1.
Intake of food high in salt
2.8
2.8
Intake of food high in saturated fats
Caffeine consumed in more than 4 cups of
coffee a day
4. Drinking too much alcohol
5. Smoking
6. Intake of drugs or medications that may
increase blood pressure
7. Lack of physical exercise
8. Stress
9. Family history of hypertension
10. Present medical conditions like kidney
disorder, diabetes mellitus and others
2.
2.4
3.0
3.
2.5
2.4
2.9
3.0
3.2
3.2
2.8
2.8
3.0
3.1
2.8
3.0
2.6
2.7
2.5
2.5
Average
a) Find the average for the male and for the female.
b) Find the weighted mean, Xw, for each indicator letting then as the weight.
MATHEMATICS IN THE MODERN WORLD
NAME:
SCORE:
SCHEDULE:
DATE:
Exercise 4.1A
Find what is required in each of the following.
1. The numbers of incorrect answers on a true or false competency test for a
random sample of 15 students were recorded as follows: 2, 1, 3, 0, 1, 3, 6, 0, 3, 3,
5, 2, 1, 4, and 2. Find the following: (a) mean, (b) median, (c) mode, and (d)
midrange.
Transcribed Image Text:MATHEMATICS IN THE MODERN WORLD Practice Problems The following data are ages of infants (in months) at which they walked alone These sample data were obtained from two populations, A and B. Sample A 9.8 11 9.5 9.8 10 13 10 10 9. 10 9.5 Sample B 12 9.5 9.5 14 12 14 13 12 12 14 14 13 Compare the two groups as to their mean, median, mode, and midrange. Central tendency В A Mean Median Mode(s) Midrange 2. A study was conducted to determine the level of awareness of the residents of a certain municipality on the causes of hypertension. The accompanying table shows the results with respect to the gender of the respondents. Male Female Weighted (n = 32) (n = 48) Mean Indicator X2 1. Intake of food high in salt 2.8 2.8 Intake of food high in saturated fats Caffeine consumed in more than 4 cups of coffee a day 4. Drinking too much alcohol 5. Smoking 6. Intake of drugs or medications that may increase blood pressure 7. Lack of physical exercise 8. Stress 9. Family history of hypertension 10. Present medical conditions like kidney disorder, diabetes mellitus and others 2. 2.4 3.0 3. 2.5 2.4 2.9 3.0 3.2 3.2 2.8 2.8 3.0 3.1 2.8 3.0 2.6 2.7 2.5 2.5 Average a) Find the average for the male and for the female. b) Find the weighted mean, Xw, for each indicator letting then as the weight. MATHEMATICS IN THE MODERN WORLD NAME: SCORE: SCHEDULE: DATE: Exercise 4.1A Find what is required in each of the following. 1. The numbers of incorrect answers on a true or false competency test for a random sample of 15 students were recorded as follows: 2, 1, 3, 0, 1, 3, 6, 0, 3, 3, 5, 2, 1, 4, and 2. Find the following: (a) mean, (b) median, (c) mode, and (d) midrange.
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