Automobiles traveling on a road with a posted speed limit of 65 miles per hour are checked for speed by a state police radar system.The following table is a frequency distribution of speeds. 
How many of the cars traveled less than 75 miles per hour?
Definitions:
Internal Rate Of Return
The discount rate at which the net present value of an investment project is zero; the rate of return promised by a project over its useful life.
Discount Rate
The rate of interest employed to calculate today's value of anticipated future cash streams in discounted cash flow evaluation.
Discount Rate
An interest rate used to discount future cash flows to their present value, often applied in capital budgeting and investment valuation.
Working Capital
A financial metric representing the difference between a company's current assets and current liabilities, indicating its short-term liquidity.
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