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Question: Machines arrive for repair at the rate of six per hour following Poisson. The mechanics mean repair time is 15 minutes, which follows exponential distribution. The down time cost for the broken down machines per hour is Rs. 300. Mechanics are paid Rs. 60 per hour. Determine the optimal number of mechanics to be employed .to minimize the total cost.
We have a nickel, dime and quarter in a cup. We withdraw two coins, first one and then the second, without replacement. What is the expected amount of money and variance for the first draw? For the second draw? For the sum of both draws?
What is the fifth term of the arithmetic sequence in which the first term is and the second term is b?
This week you are learning about one of the most basic services that a bank offers: the checking account. Other types of accounts that a bank offers are: Money Market Account, Passport Savings, or Certificate of Deposit.
Estimate the electrical power we might get from this system assuming 80% efficiency. Assume head from the speed of the river is negligible.
a person collects coins nickels dimes and quarters in a jar. at the end of the year they emptied the jar and found that
Arrivals at a Jiffy Lube follow a Poisson process with rate 10/hour. Service time is exponentially distributed with mean 15 minutes per customer.
it is known that 20 of all persons given a certain medication get very drowsy within 2 minutes. find the probabilities
Find the value of the polynomial 8x – 6 when x = 1 and when x = –1.
What ticket price (rounded to two decimal places) would make it a fair game? Would you choose to play the game? In complete sentences, explain why or why not.
A doctor claimed that meditation can reduce the systolic blood pressure
An employee joined a company in 2009 with a starting salary of $50,000. Every year this employee receives a raise of $1000 plus 5% of the salary.
A lottery allows a player to choose 6 values out of 60. The goal of the lottery is to break even exactly, making its cash prizes equal to the amount of money.
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