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An annuity on (50) provides for yearly payments for 30 years. The amount of the income is 10 000 for the first 10 years, 8000 for the next 10 years and 5000 for the last 10 years. The net single premium for this annuity is 100 000. You are given that the interest rate is a constant 5% and that 10p50 = 0.9, 20p50 = 0.8, 30p50 = 0.7. Find the premium if the same income is to be paid monthly instead of annually, assuming payments are made (a) at the beginning of each month, (b) at the end of each month.
What is the probability that a sample of 16 persons would weigh more than 1140 kilos and what is the probability that exactly 20 germinate?
a national study has determined that people who work full time average 43.4 hours worked per week. assume that the
Use Benford's distribution to calculate the probability of each digit and record your results in the table above. Comment on how closely your distribution of first digits follows Benford's distribution. Why are they not exactly the same?
suppose that a category of world class runners are known to run a marathon 26 miles in an average of 145 minutes with a
In a 1993 survey of 560 college students, 171 said that they used illegal drugs during the previous year. In a recent survey of 720 college students, 263 said that they used illegal drugs during previous year.
Suppose the correlation between weight and height for adults is +.80. What proportion (or percentage) of the variability in weight can be explained by the relationship with height?
suppose that the annual rate of return for a common biotechnology stock is normally distributed with a mean of 5 and a
A real estate broker hoped to develop an equation that could be used to predict the sales price of homes in a certain suburb. It seemed to him that the most important variable
A recent study found that the average life expectancy of a person living in Africa is 53 years with a standard deviation of 7.5 years. If a person in Africa is selected at random
A doctorhas developed an experimental drug for toe-nail fungus. He needs to test it out on some people to make sure it works. He has a list of 2000 people who could be potential subjects in his study. 1120 of these potential subjects have toe ..
56% are enrolled in school. If a sample of 500 such children is randomly selected, find the probability that at least 250 will be enrolled in school.
the florida fruit supply company uses bottles that are labeled as containing 23 oz of orange juice. a random sample of
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