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During a 69-year period, tornadoes killed 6755 people in the United States. Assume this rate holds true today and is constant throughout the year. Find the probability that tomorrow
(a) no one in the U. S. is killed by a tornado,
(b) one person in the U.S. is killed by a tornado,
(c) at most two people in the U.S. are killed by a tornado, and
(d) more than one person in the U.S. is killed by a tornado. (Source: National Weather Service)
An accounting firm is planning for the next tax preparation season. From last year's returns, the firm collects a systematic random sample of 100 filings.
What is meant by Econometrics, Regression analysis and Disturbance or error term?
Normally distribution with µ=8 minutes and σ=2 minutes. If you select random samples of 25 calls, what percentage of the sample means would be between 7.8 and 8.2 minutes?
Explain this exception to the general trend in terms of electron arrangements and attraction/repulsion. The explanation must be complete and straight forward, and easy for all to understand.
At the 0.05 level of significance, is there evidence of a difference in the mean waiting times in the four locations? State your null and alternative hypotheses. (Note: while the small sample size could justify use of the non- parametric Kruskal-W..
Find the mean score, X , of the data in the frequency distribution above and find the standard deviation of the scores in the frequency distribution above.
What proportion of children 10 to 15 would be classified as hyperlipidemic(assume that hyperlipidemia is defined as a total cholesterol level over 200?
A TV spot in the Channel 22 early news costs $1500. The average quarter hour Adult 25-54 audience is 15,000. What is the CPM?
If the airline books 79 people on a flight for which the maximum number is 77, what is the probability that the number of people who show up will exceed the capacity of the plane?
Bonus is sales are made to 3 of the neighbors, and $200 if he able to sell to 4 neighbors. In how many ways can edwards make bonuses greater than $50?
Compute the coefficient of correlation and the coefficient of determination and determine the regression equation.
you have made calculations to test scores from 50 students are from a normal distribution. you calculate the mean score
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