1) What type of random variable is the amount of money in a wallet? a) discrete b) continuous c) neither d) both 2) Which of the following is a continuous random variable? a) The number of students in a classroom b) Recording the amount of rainfall in a day c) The number of cars in a parking lot d) Counting the number of fruits in a dining table 3) What information does the variance of a discrete random variable provide? a) The central tendency of a data b) The most frequently occuring value c) The spread of the data d) The median of the data 4) The mean of a discrete random variable is also known as: a) variance b) countable c) sum of scores d) expected value 5) What is the shape of the normal distribution curve? a) skewed b) bimodal c) bell-shaped d) uniform 6) The total area under the normal distribution curve is: a) 0.5 b) 1 c) 2 d) 3 7) Random sampling is essential for which of the following? a) Increasing study costs b) Reducing sample size c) Making accurate generalizations d) Ensuring unequal representations 8) In random sampling, how is the chance of selection for each individual described? a) Equal b) Based on age c) Based on income d) Unequal 9) A _______________ describes a characteristic of a population. a) Parameter b) Statistic c) Data d) Sample 10) A _______________ describes a characteristic of a sample. a) Parameter b) Statistic c) Data d) Sample 11) In _______________________ random sampling, every member of the population has an equal chance of being selected. a) simple b) systematic c) stratified d) cluster 12) When using ___________________ random sampling, you select every nth individual from a list of the population. a) simple b) systematic c) cluster d) stratified

Remedial Class Final Quiz

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