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68 Cards in this Set
- Front
- Back
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Tally Mark
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A tallly mark is a symbol
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frequency
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The frequency is the number of times an item, number, or event occurs in a data set
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frequency table
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A frequency table is a tabular display for organizing a data set to show the number of times each item, or each number, appears
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measure of center
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The measure of center is a numerical value used to describe the overall clustering of a data set
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mean
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The mean is the sum of the numbers in a set of data divided by the number of pieces of data . The mean is also known as "the average" or the arithmetic mean.
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median
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The median is the number in the middle of a data set when the data are arranged in order from least to greatest or greatest to least.
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mode
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The mode is the number that occurs most frequently in a data set
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ungrouped frequency table
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An ungrouped frequency table is a frequency table in which data are not organized into groups.
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grouped frequency table
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A grouped frequency table is a representation in which the frequency of data values that occur within each interval, or group, of the data set is listed
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interval
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An interval is the regular distance or space between values; the set of points between two numbers. Each interval must be the same
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pictograph
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A pictograph is a graph the displays a set of data consisting of different categories by using pictures or symbols
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key
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A key is used in a graph to explain the colors or patterns used in the graph.
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bar graph
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A bar graph displays data using horizontal and vertical bars so that the height or length of the bars indicates a value for a specific category
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double bar graph
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A double bar graph is a bar graph which is used when each category contains two different groups of data. The bars must be vertical or horizontal
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stacked bar graph
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A graph that compares the two different frequencies of 2 diff groups in a category stacked on top of each othe.
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line plot
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A line plot is a graph that shows the frequency of data using a number line. dot plots and can help organize and display a small number of data points.
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stem-and-leaf plot
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A graphical method used to repriesent ordered numerical data. Once the data are ordered, the stems and leaves are determined. Typically, a stem is made up of all the digits in a number except the rightmost digit, which is the leaf
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side-by-side stem-and-leaf plot
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A stem-and-leaf plot that allows a comparison of two data sets
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histogram
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A bar graph that show s how many data values fall into a certain interval
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line graph
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A graph that displays data by using points joined by line segments
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depreciation
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The decline in value of an item over time.
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double line graph
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A line graph that is used to compare two sets of data over a period of time
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appreciation
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The increase of value of an item over time.
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categorical data
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Data that can be grouped into categories, such as the names of animals or U.S. cities.
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quantitative data
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Data tha can be represeted by numbers to show quantity.
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data analysis
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The process of asking questions and collecting, organizing, and analyzing data to answer those questions
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survey
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one method of collection info about a certain group of people by asking them a question or set of questions
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experiment
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Whenever you have a question and you collect quantitative data to answer it by performing a test for which you decide the conditions, you are performing an experiment
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trial
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A trial occurs each time you perform the experiment.
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array
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A rectangular arrangement that has an equal number of objects in each row and an equal number of objects in each column
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factor pairs
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Two numbers that are multiplied together that result in a product
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factor
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A factor occurs when two or more numbers are multiplied. Each number is a factor of the product
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distinct factors
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Factors that only appear only once in a list
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perfect square
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A number that has a factor that multiplies itself
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multiple
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the product given whole number and another whole number
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divisible
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one number is divisible by the second number when the second number divides "evenly" into the first number with no remainder.
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area model
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a pictorial way of represention multiplication. In an area model, the rectangle's length and width represent fators, while the rectangle's area represents the product.
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Venn diagram
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a picture that illustrates the relationships between two or more sets.
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set
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a collection of numbers, geometric figures, letters, or other objects that have some characteristic in common.
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prime factorization
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the expression of a composite number as a product of prime numbers. Prime factorization is the string of factors that is made up of all prime numbers.
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prime number
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number greater than 1 with exactly two factors, 1 and the number itself.
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composite number
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numbers that has more than two factors.
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multiplicative identity
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the number such that when multiplied by a second number, the product is the second number
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divisibility rules
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tests for determining whether one positive whole number is divisible by another
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Associative Property of Multiplication
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States that changing the grouping of the factors in a multiplication statement does not change the product. For any numbers a, b, and c
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Factor tree
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A way to organize and help you determine the prime factorization of a number; Factor trees use branches to show how a number is broken down into priem numbers.
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Base
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is the factor that is repeatedly multiplied
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Exponent
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Is the number of times the base is used as a factor of repeated multiplication.
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Common multiple
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A number that is a multiple of two or more numbers
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Least Common Multiple (LCM)
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The smallest multiple (other than zero) that two or more numbers have in common.
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Common Factor
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A number that is factor of two or more numbers.
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Greatest Common Factor (GCF)
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The largest factor two or more numbers have in common
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Relatively prime numbers
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Two numbers that donot have any common factors other than 1
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Power
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lakjs;dflkajs
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Reciprocal
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Also known as the multiplicative inverse of the number
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Mixed Numbers
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a whole number part and a fraction part
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Multiplicative Inverse
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when the denominator and the numerator trade places
EX. a/b multiplicative inverse: b/a |
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Improper Fraction
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A fraction in which the numerator is greater than or equal to the denominator
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Fraction
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a part of whole object, set, or unit. Whole numbers separated with bar
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Inequality
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One number is less than or greater than another number
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Benchmark Fraction
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Common fractions u use 2 estimate the value of fractions
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Common Denominator
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two or more fractions have a common denominator in eace fraction are the same
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Least Common Denominator
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the least common multiple of the denominators
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Equivalent Fraction
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Fractions that represet the same part-to-whole relationship r equivalent fractions
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Unit Fraction
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A fraction that has a numerator of 2 and a demnominator that is a positive integer greater than 1
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Simplest Form
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WHen a fraction cannot be simplified further
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Numerator
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THe number above the bar in a fraction and the number of parts of the whole
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Denominator
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The number bolow the bar in the fraction and the denominator represents how many parts make up the whole.
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