Forbesmagazine 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 $1 billion. The table below shows the ages of the chief executive officers for the first75 ranked firms.

AGE: FREQUENCY:

40-44 4

45-49 9

50-54 15

55-59 18

60-64 17

65-69 10

70-74 2

What percentage of CEOs are 55years or older? Round your answer to the nearest tenth.

%

What is the relative frequency of ages under 60? If responding using a decimal, round your answer to the nearest hundreth.

What is the cumulative frequency for CEOs younger than 55?