a) 10% b) 20% c) 30% d) 3% Answer: d Explanation: If a bell curve is assumed, ...
View QuestionFor continuous random variables, the CDF is the derivative of the PDF.
a) True b) False Answer: b Explanation: For continuous random variables, the PDF is the derivative ...
View QuestionWhich of the following inequality is useful for interpreting variances?
a) Chebyshev b) Stautaory c) Testory d) All of the mentioned Answer: a Explanation: Chebyshev’s inequality is ...
View QuestionPoint out the wrong statement.
a) A percentile is simply a quantile with expressed as a percent b) There are two types of ...
View QuestionThe square root of the variance is called the ________ deviation.
a) empirical b) mean c) continuous d) standard Answer: d Explanation: Standard Deviation (SD) is the measure ...
View QuestionWhich of the following of a random variable is a measure of spread?
a) variance b) standard deviation c) empirical mean d) all of the mentioned Answer: a Explanation: Densities ...
View QuestionPoint out the correct statement.
a) Some cumulative distribution function F is non-decreasing and right-continuous b) Every cumulative distribution function F is decreasing ...
View QuestionThe expected value or _______ of a random variable is the center of its distribution.
a) mode b) median c) mean d) bayesian inference Answer: c Explanation: A probability model connects the ...
View QuestionStatistical inference is the process of drawing formal conclusions from data.
a) True b) False Answer: a Explanation: Statistical inference requires navigating the set of assumptions and tools.
View QuestionWhich of the following function is associated with a continuous random variable?
a) pdf b) pmv c) pmf d) all of the mentioned Answer: a Explanation: pdf stands for ...
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