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Question about Business Statistics (MA3000)? Is it possible to have a distribution that is symmetric but not normal? if so, what is an example and what would we call such a distribution?
Statistics and Probability, Statistics
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A political candidate wishes to determine if endorsing increased social spending is likely to affect her standing in the polls. She has access to data on the popularity of several other candidates who have endorsed incre ...
Let x = age in years of a rural Quebec woman at the time of her first marriage. In the year 1941, the population variance of x was approximately σ 2 = 5.1. Suppose a recent study of age at first marriage for a rand ...
Research Scenario: A social psychologist is interested in whether the number of days spent in a refugee camp predicts trauma levels in recently resettled refugees. He interviews 17 refugees to determine how many days the ...
The ACME Insurance Company has two types of customers, careful and reckless. A careful customer has an accident during the year with probability 0.01. A reckless customer has an accident during the year with probability ...
Rework problem 3 from section 4.3 of your text, involving the expected value of a given probability density function. Use the density function shown below instead of the one in your text. Value of X: ; Probability: 1 1/2 ...
The table below shows the results of a survey in which 2556 adults from Country? A, 1107 adults from Country? B, and 1060 adults from Country C were asked if human activity contributes to global warming. Complete parts? ...
A group of students made the following scores on a 10-item quiz in psychological statistics: {5, 6, 7, 7, 7, 8, 8, 9, 9, 10, 10} What is the variance, treating these scores as a sample?
On the ballot, Illinois voters had the option to select "yes" or "No" when asked if the state's minimum wage should be increased from $8.25 to $10 an hour by January 1, 2015. Before the actual voting date, a survey with ...
The time to complete 1 construction project for company A is exponentially distributed with a mean of 1 year. Therefore: (a) What is the probability that a project will be finished in one and half years? (b) What is the ...
Suppose we can only sample from Uniform distribution (0,1) with k=3. Design an algorithm to simulate chi-square distribution with 2k freedom via general transformation method.
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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
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