The above table shows the distribution of income in two imaginary countries, Alpha and Beta
a) What does the table tell you about the second 20 percent group in each country?
b) Calculate the cumulative percentage for both countries.
c) Interpret the cumulative percentage for the third 20 percent group in both countries.
a) The second 20 percent group earns 10 percent of the income in country Alpha and 6 percent of the income in country Beta.
Household percentage Cumulative percentage of income Alpha Cumulative percentage of income Beta
Lowest 20 percent 5 3
Second 20 percent 15 9
Third 20 percent 35 21
Fourth 20 percent 65 45
Highest 20 percent 100 100
b) The table above has the cumulative percentages.
c) In country Alpha, the poorest 60 percent of households earns 35 percent of income. In country Beta, the poorest 60 percent of households earns 21 percent of income.
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For years, Pinnacle Roofing has been getting nails from its supplier at a rate of $10 per 2,000 nails. The supplier has just informed Pinnacle that the price of nails is going up to $11 per 2,000 nails. As a result, Pinnacle’s average total cost of operation will ______.
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