|The volume of liquid in an unopened 1-gallon can of paint is an example of _________.
||the binomial distributionboth discrete and continuous variablea discrete random variable*a continuous random variablea constant
|The number of finance majors within the School of Business is an example of _______.
||the normal distributiona constant*a discrete random variablea continuous random variablethe Poisson distribution
|The speed at which a jet plane can fly is an example of _________.
||a discrete random variableneither discrete nor continuous random variableboth discrete and continuous random variablea constant*a continuous random variable
|Random variables, which are usually generated from experiments in which the observations or things are “counted” rather than “measured,” are __________.
||experimental random variablescontinuous random variables*discrete random variablesnot random variables
|In a sample of ten students randomly selected from your class, the height of student is __________.
||a sample random variable*a continuous random variablea discrete random variablea fixed variable
|The average time of students spend on reading per day is _________
||a discrete random variablea fixed variablea sample random variable*a continuous random variable
|Random variables, which are usually generated from experiments in which the observations or things are “measured” rather than “counted”, are __________.
||experimental random variables*continuous random variablesdiscrete random variablesnot random variables
|The random variable, “number of people who arrive at a store during a 15-minute interval,” is an example of __________.
||a continuous random variable**a discrete random variablenot a random variablean experimental random variable
|The random variable, which describes the “time between customer arrivals at a retail store,” is an example of __________.
||a fixed variablea sample random variable*a continuous random variablea discrete random variable
|In American Roulette, there are two zeroes and 36 non-zero numbers (18 red and 18 black). If a player bets 1 unit on red, his chance of winning 1 unit is therefore 18/38 and his chance of losing 1 unit (or winning -1) is 20/38. Let x be the player profit per game. The mean (average) value of x is approximately_______________.A recent analysis of the number of rainy days per month found the following outcomes and probabilities.