| A | B |
|---|
| rate | a ratio of two numbers that have different units |
| unit rate | a rate with a denominator of 1 |
| rate conversion | a process of changing at least one unit of measurement in a rate to a different unit of measurement |
| ratio | a comparison of two numbers using division |
| complex fraction | a fraction that contains a fraction in its numerator, denominator, or both |
| conversion | the process of renaming a measurement using different units |
| customary units | a system of measurement used in the US that includes units for measuring length, capacity, and weight |
| metric units | a system of measurement based on tens. |
| proportion | an equation stating two ratios are equivalent |
| scale factor | the ratio of corresponding sides in two similar figures |
| congruent figures | two figures that have the exact same shape and the exact same size |
| similar figures | two figures that have the same shape, but not necessarily the same size |
| congruent | equal in measure |
| corresponding parts | the angles and sides in similar or congruent figures that match |
| cross products | the product of one numerator and the opposite denominator in a pair of equivalent fractions |
| equivalent fractions | two or more fractions that represent the same number |
| discount | the decrease in the price of an item |
| percent of change | the percent a quantity increases or decreases compared to the original amount |
| percent of increase | the percent of change when the new amount is more than the original amount |
| percent | a ratio that compares a number to 100 |
| sales tax | an amount added to the cost of an item usually based on a percentage |
| mark-up | the increase in the price of an item |
| percent of decrease | the percent of change when the new amount is less than the original amount |
| part | the number that you have |
| whole | the total number |
| median | the middle number or the average of the two middle numbers in an ordered data set |
| mode | the number(s) or item(s) that occur most often in a data set |
| histogram | a bar graph that displays the frequency of numerical data in equal-sized intervals |
| dependent events | two (or more) events such that the outcome of one event affects the outcome of the other event(s) |
| compound probability | the probability of two or more events occurring |
| measures of variability | statistics that help determine the spread of numbers in a data set |
| complements | two probabilities whose sum is 1. Together they make up all the possible outcomes without repeating any outcomes. |
| event | a desired outcome or group of outcomes |
| frequency | the number of times an item occurs in a data set |
| independent events | two (or more) events such that the outcome of one event does not affect the outcome of the other event(s) |
| pie chart | a circle graph that shows information as sectors of a circle |
| mean absolute deviation | a statistic that shows the average distance from the mean for all numbers in a data set |
| probability | the measure of how likely it is an event will occur |
| outcome | one possible result from an experiment or a probability sample space |
| sample | a group from a population that is used to make conclusions about the entire population |
| representative sample | a group from a population that accurately represents the entire population |
| tree diagram | a display that organizes information to determine possible outcomes |
| experimental probability | the ratio of the number of times an event occurs to the total number of trials |
| theoretical probability | the ratio of favorable outcomes to the number of possible outcomes |
| simulation | an experiment used to model a situation |
| inference | a logical conclusion based on known information |
| interquartile range | the differnce between the 3rd quartile and the 1st quartile in a set of data |
| population | the entire group of people or objects one wants to gather information about |
| trial | a single act of performing an experiment |
| random sample | a group from a population created when each member of the population is equally likely to be chosen |
| range | the difference between the maximum and minimum values in a data set |
| biased sample | a group from a population that does not accurately represent the entire population |
| mean | the sum of all values in the data set divided by the number of values |
