Forbes magazine published data on the best small firms in 2012. These were firms

Question

Forbes magazine published data on the best small firms in 2012. These were firms which had been publicly traded for at least a year, have a stock price of at least $5 per share, and have reported annual revenue between $5 million and $1billion. The Table shows the ages of the chief executive officers for the first 50 ranked firms. 40 45) is to be read 40 up to but not including 45 Age Frequency Relative Frequency Cumulative Relative Frequency 40-45 45-50 50-55 55-60 14 8 60-65 4 65-70 70-75 Complete the Table and then answer the following questions: How many of the CEO are between 55 and up to but not 65 years old?

Explanation / Answer

From the given data

The CEO's are between 55 and upto 65 is years 14+8 = 22

The percentage of CEO's are 65 years older is 5/50 *100 =10%

The percentage of CEO's are 50 years older is 38/50 *100 =76%

The percentage of CEO's younger than 55 years older is 23/50 *100 =46%

C.I. Freq Relative Freq Cumulative Relative frequency 40-45 3 0.06 0.06 45-50 9 0.18 0.24 50-55 11 0.22 0.46 55-60 14 0.28 0.74 60-65 8 0.16 0.9 65-70 4 0.08 0.98 70-75 1 0.02 1 Total: 50

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