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Let X be the random variable for the number of times a fair dice is tossed before a six appears. Find E[X]. I tried by making X a geometric distribution and got E[X]=6. However the answer that is given says its 5. Can some one help me out with this?
Statistics and Probability, Statistics
You work for a large company with tens of thousands of retail outlets throughout the world. The average sales at each retail outlet is $2,400,000 per year, with a standard deviation of $600,000. You want to put in place ...
Using Chebysheff's theorm, you have concluded that at least 77.66% of the 3,075 runners took between 60.5 and 87.5 minutes to complete the 10km race. What was the standard deviation of these 3,075 runners?
Can you look for multicollinearity between a categorical independent variable and a continuous dependent variable or can you only look for multicollinearity between a continuous independent variable and a continuous depe ...
The correlation between the weight of a bodybuilder and the weight they can lift is 0.70. True or False: The more this bodybuilder weighs, the more amount of weight they can lift
A representative from your company visited a prison and sampled 500 prisoners in Kailil, concluding that 90 of them are political prisoners. The Test hypothesis, at the 5% significance level, that one third of the prison ...
Rippard's has a debt ratio of 15%, a total asset turnover ratio of 3.0 and a return on equity (ROE) of 48%. Compute Rippard's net profit margin.
In a study to determine the percentage of college students who read the newspaper, which of one following is the best sample? A. The Students in a math class. C.The freshmen in a particular school. B. The first 20 studen ...
What are impacts that flexible work schedules can have on a employee's productivity?
We polled a sample of 900 random people on whether they thought a candidate for a high government position deserves to be nominated. We found that 405 of the 900 people (or 45%) believe the candidate should not be nomina ...
Tossing a fair coin three times, what's the probability that at least one head will occur?
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
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