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For simplicity, let us assume that there are two kinds of drivers. The safe drivers, who are 70% of the population, have probability .1 of causing an accident in a year. The rest of the population are accident makers, who have probability .5 of causing an accident in a year. The insurance premium is $400 times one's probability of causing an accident in the following year. A new subscriber has an accident during the first year. What should be his insurance premium for the next year?
The degrees of freedom for a chi-square test on a two-way table with 2 columns and 5 rows is 4.
Eagle airlines' planes hold only 15 people. Past records indicate that 20% of the people making a reservation do not show up. We will assume that all reservations are independent; that is each reservation is for one person and these reservations a..
If on the other hand, he believes that the probability that he will get offers from both companies is 0.5, what is the probability that he will get at least one offer from these two companies?
Determine a 95% confidence interval for proportion of all voters in favour of candidate.
routine physical examinations are conducted annually as part of a health service program for the employees. it was
A real estate builder wishes to determine how house size (house) is influenced by family income (income), family size (Size) and education of the head of household (School).
What is the probability that this process will be stopped within the next hour and what is the variance of the number of defectives in a batch of 15 ?
Find a 95% confidence interval for the proportion p of the inner-city, working-class group who eventually became alcoholics.
The weight of a .5 cubic yard bag of landscape mulch in uniformly distributed over the interval from 38.5 to 41.5 pounds. Give a mathematical expression for the probability density function.
Test at the 1% significance level whether currently all adult men spend less than 11 hours per week watching sports on tv. Calculate the p-value for this problem and conduct the test using the p-value method.
At the .01 significance level, is there a relationship between job pressure and age?
If 1.5 million X-Games were sold over the holidays, determine an interval for the number of defectives in sales. 12,184 to 32,816.
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