Let x denote the prison sentence in years for people
Let X denote the prison sentence, in years, for people convicted of auto theft in California. Suppose that the pdf of X is given by
f (x) = (1/9)x2,0 Use integration to find the expected prison sentence. [hint: requires calculus.
Use integration to find the expected prison sentence. [hint: requires calculus.
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Katie earned a 2.7 percent real rate of return on her investments for the past year. During that time, the risk-free rate was 4.1 percent and the inflation rate was 3.6 percent. What was her nominal rate of return?
A firm has a net monetary liability balance of $10,000 on January 1, 2001. During the first third of the year, the balance decreased to $7,500. During the second third of the year, the balance increased to $12,500.
A plot of land costing $200,000 was acquired on January 1, 2001. The price level was 120 on that date. One-quarter of the land was sold on December 31, 2001, for $60,000 when the general price level was 180. Compute the following holding gains:
Let X be the random variable distributed as Normal (5,4). Find the probabilities of the following events
Let X denote the annual salary on university professors in the United States, measured in thousands of dollars. Suppose that the average salary is 52.3, with a standard deviation of 14.6.
Suppose a fair coin is tossed 3 times and let a random variable X denote the number of heads. Define Y, a Bernoulli random variable, as Y=1 if the first tossed coin turns up head, and Y=0 otherwise.
Would you say that the estimated fall in consumption is large in magnitude? Comment on the practical versus statistical significance of this estimate.
A random sample of 104 executives was asked about their views on the economy. 40 percent said it would improve (the rest saying it would not improve).
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