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1. Let X be a random variable representing the minimum of the two numbers of dots that are facing up af ter a pair of fair dice is rolled. Define the appropriate prob ability density for X. What is the probability space for the experiment of rolling the fair dice and observing the minimum of the two numbers of dots?
2. A package of a half-dozen light bulbs contains two defective bulbs. Two bulbs are randomly selected from the package and are to be used in the same light fix ture. Let the random variable X represent the number of light bulbs selected that function properly (i.e., that are not defective). Define the appropriate probability density function for X. What is the probability space for the experiment?
1.an experiment was conducted to determine the effects of three different pesticides p1p2p3 on the yield of three
question approximately 80 of workers are sure that they will be able to retire at 65 years of age. suppose 10 workers
An investor invests in 40% of his money in stock A and 60% of his money in stock B, what is his portfolio's expected return? What is his portfolio's variance and standard deviation?
the lifetime of a certain transistor in a certain application has mean 900 hours and standard deviation 30 hours. find
the salespeople at quality motor bikes sell up to 5 bikes a month. the probability distribution is as follows in the
If we assume that the monthly rents for apartments on the east side are normally distributed, is there enough evidence to conclude, at the .05 level of significance, that is less than $675?
what effect does the sample size have upon the maximum error of
a researcher wishes to test the effectiveness of a flu vaccination. 150 people are vaccinated 180 people are vaccinated
If you have a body temperature of 99.00 °F, what is your percentile score? Convert 99.00 °F to a standard score (or a z-score).
A random sample of 100 workers in this industry has a mean daily wage of $124. Find a 95% confidence interval for the true mean daily wage of all union workers in the industry.
What is the probability of a fatal accident over a lifetime? Explain your reasoning carefully. Hint: Assume independent events. Why might the assumption of independence be violated?
For following data, find out whether or not right-hemisphere damage results in significantly decreased performance on spatial skills task.
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