Suppose you bought a stock 6 years ago at RM12 per unit. Table below showsthe stock price at the end for each year.4.YearPrice12345101415223025Calculate the rate of return for each yearCalculate the arithmetic mean for the rate of return.а.b.с.Compute the geometric mean of the rates of return. 5.The manufacturer of an extended-life lightbulb claims the bulb has an averagelife of 12,000 hours and standard deviation of 500 hours. If the distribution isbell shaped and symmetrical, what is the approximate percentage of these bulbsthat will lastа.between 11,000 and 13,000 hours?b.over 12,500 hours?с.less than 11,000 hours.?

Given: Light bulbs average life =12,000 hours. Standard deviation =500 hours To find: To find the…

5. The manufacturer of an extended-life lightbulb claims the bulb has an average life of 12,000 hours and standard deviation of 500 hours. If the distribution is bell shaped and symmetrical, what is the approximate percentage of these bulbs that will last а. between 11,000 and 13,000 hours? b. over 12,500 hours? с. less than 11,000 hours.?

5. The manufacturer of an extended-life lightbulb claims the bulb has an average life of 12,000 hours and standard deviation of 500 hours. If the distribution is bell shaped and symmetrical, what is the approximate percentage of these bulbs that will last а. between 11,000 and 13,000 hours? b. over 12,500 hours? с. less than 11,000 hours.?

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter4: Polynomial And Rational Functions

Section4.6: Rational Functions

Problem 11SC: Find the mean hourly cost when the cell phone described above is used for 240 minutes.

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