1. The most obese countries in the world have obesity rates that range from 11.4% to 74.6%. This data is
summarized in the following table.
Percent of Population Obese Number of Countries
11.4 to less than 20.45 29
20.45 to less than 29.45 13
29.45 to less than 38.45 4
38.45 to less than 47.45 0
47.45 to less than 56.45 2
56.45 to less than 65.45 1
65.45 to less than 74.45 0
74.45 to less than 83.45 1
(a) Draw a histogram for the percentage of obesity.
(b) Calculate the median, mode, first and third quartiles, semi-quartile range (SQR), mean, standard deviation, skewness and coefficient of variation of the percentage of obesity from the above data.
(c) Estimate the range of percentage of obesity for the middle 60% of the countries.
(d) Estimate, from the frequency distribution table, the probability that at least 4 out of five randomly selected countries will have maximum 25% of the population being obese?
This problem can be solved by draw a histogram for the percentage of obesity. Calculate the median, mode, first and third... View the full answer