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Two people, A and B, are both age x. A buys a 20-year endowment policy, with a constant death benefit of 1, and a pure endowment of 1 at time 20, paying level annual premiums for 20 years. B buys a whole life policy with a constant death benefit 1, paying level annual premiums for life, and in addition, each year, invests the difference between his/her premium and A's premium, in a savings account. At time 20, the reserve on B's policy, plus the amount in his savings account total 1. All premiums were calculated at a constant interest rate of i. B earned a constant rate of j on his investments. Is j greater than, less than or equal to i? Why?
a system is composed of eight independent subsystems. each subsystem operates 95 of the time. what is the probability
To make a p-chart for the nonconforming units. The coating of the candy bar is currently make by a process which can result in surface cracking.
Teenage boys is approximately normal with and Levels above 200 warrant attention. Find the probability that a teenage boy has a cholesterol level greater than 215.
Illustrate your answer with a histogram of the sample's scores and sketches of the population distribution and the distribution of means, showing the t score and cutoff points for significance.
Statistics are routinely used by journalists to explain and support claims. The news media often uncritically report on or even distort the findings of scientific studies..Is the argument for the causal relationship convincing
The mean monthly demand for steam boilers is 6.8 with a standard deviation of 1.7. Compare the dispersion of these distributions. Which demand pattern has more relative variation? Explain.
In your opinion does one do a better job or representing the proportion of the area under the standard curve?
Write a short report that includes an introduction, a conclusion paragraph and a body which answers fully the two questions posed in the problem - Comparing the preceding probabilities, which areas seem strongest and weakest in terms of the amount..
SAT verbal scores are normally distributed with a mean of 401 and a standard deviation of 91. Use the Empirical Rule to determine what percent of the scores lie between 310 and 492.
Find the probability distribution for X defined as the number of defective items drawn (Hint: You have to find P(X=0), P(X=1) and P(X=2). You may have to use both multiplicative and additive rules to find P (X=1)).
during winter a fully-lit room is to be maintained at db 25 c and rh 60. if the sensible heat load is 400 kjs and the
let x the number of flaws on the surface of a randomly selected boiler of a certain type have a poisson distribution
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