7th Grade Statistics & Probability Vocabulary Quiz

What is: A group from a population that does not accurately represent the entire population.

• biased sample

• compound event

• population

• dependent

What is: a combination of two or more simple events

• compound event

• box-and-whisker plot

• Inference

• probability

What is: when the outcome of one event affects the outcome of another event

• dependent event

• independent event

• probability

• simulation

What is: the ratio of the number of times an event occurs to the total number of times that the activity is performed

• experimental probability

• compound event

• range

• simulation

What is: independent event when the outcome of one event does not affect the outcome of another event

• dependent event

• simple event

• independent event

• random sample

What is: the difference between the 3rd quartile and the 1st quartile in a set of data

lower quartile the median of the lower half of the data

• interquartile range

• range

• median

• mode

Match the following

• mean

• the data value that occurs the most often

• range

• the difference between the greatest data value and the least data value

• mode

• the average distance between each data value and the mean

• median

• the middle data value when the values are written in numerical order

• mean absolute deviation

• average, the sum of the data values divided by the number of items

Match the following.

• random sample

• the ratio of the number of favorable outcomes to the total number of possible outcomes

• representative sample

• A group from a population that accurately represents the entire population.

• population

• a sample that is unbiased, every possible sample of the same size has an equal chance of being chosen

• quartiles

• the values that divide the data in four equal parts

• probability

• the entire group of people or objects one wants to gather information about.

What is: the ratio of favorable outcomes to the number of possible outcomes.

• theoretical probability

• experimental probability

• measures of variability

• outcome

Match the following

• simulation

• An experiment used to model a situation.

• compound probability

• a single act of performing an experiment

• trial

• a desired outcome or group of outcomes

• inference

• A logical conclusion based on known information.

• event

• the probability of two or more events occurring.