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Probability and Data

maths words

TermDefinition
frequency The number of times an event occurs; or the number of individuals (people, animals etc.) with some specific property
the median The middle number or value when all values in a set of data are arranged in ascending order.
ascending going up, for example in order of size
the mode The most commonly occurring value or class with the largest frequency. eg in the set 2, 3, 3, 5, 7, 3, 2, 9 the mode is 3
pie chart A form of presentation of statistical information. Within a circle, sectors like ‘slices of a pie’ represent the quantities involved. T
the range A measure of spread in statistics. The difference between the greatest value and the least value in a set of numerical data
likelihood the chance of something happening; how likely it is
risk the chance of something bad happening
random selected by chance, without a plan
spinner a round disc with numbers on. You spin it to get a random number
dice (die) a cube with the numbers 1-6 on. You throw it to get a random number
certain sure, 100% likely
probability measurement of how likely something is to happen, usually as a % or fraction
the mean the kind of average found by adding all the values and dividing by how many there are; Example:The arithmetic mean of 5, 6, 14, 15 and 45 is (5 + 6 + 14 + 15 + 45) ÷ 5 i.e. 17.
Created by: ealLAY
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