Page 464 - Math Smart - 7

Mode: The value that occurs the most
Time Interval: The amount of time between
Unit 12 number of times in a data set
the end of an event and the start of another
Percent Out of 100 Outlier: A value that is much higher or much
Time: The measured period during which
Percentage; A number that represents a lower than the other values of the data set
events occur in the past, present or future
fraction of 100 Pictogram: Agraph that uses symbols to
Timetable: A table showing the times at which
display data
"-^^rtain events occur
Unit13 Pie chart: A circular diagram that is divided
Volume: The amount of space a solid takes
Direct Proportion; When two quantities up into sectors where the area of each sector is
increase or decrease at the same time and proportional to the value it represents
the ratio of quantities is constant Range: The difference between the maximum
Unit 16
Proportion: Compares quantities as part of value and minimum value of a data set
Congruent: When two or more figures have
the quantity or as part of a whole Ranked: When values in a data set are listed
the same shape and size
Rate: A ratio between two related quantities in in order of size
Image: The shape obtained after a
different units Spread: How much values in a data set
transformation has taken place; it is congruent
Ratio: Compares quantities of the same kind varies from each other or from the 'middle'
to the original figure
or of the same unit value
Line of reflection: The axis or imaginary line Statistics: Data gathered from a sample to
that passed through the centre between a
Unit 14 figure and its image, or through the centre of help draw information or conclusion about a
larger population
Construction: The drawing of iines, angles a shape, and dividing them into mirror images
and geometrical shapes accurately using Object: The original shape before a
compasses and ruler transformation happens Unit 18
Convention: A standard way of doing Reflection: A transformation in which each Bias; An event in which some outcomes
something are more likely to happen or have a higher
point of a figure and its image appears
Cross section: The shape of the face equidistantirom the-line of reflection; a mirror probability of happening
produced when a solid is sliced through image is produced Equally likely outcomes: Two or more
Grid: A network of lines that cross each other Rotation: Turnjng a shape and ail its points outcomes that have the same probability of
to form a pattern of squares or rectangies about a fixed point through the same angle happening
Set square: A triangular instrument with one in the same direction (clockwise or anti Event: A set of outcome(s) of an activity
angie of 90°, used for drawing angles, parallel clockwise) Experimental Probability: Probability that
lines and perpendicular lines Transformation; A change in the size, is calculated using data from an experiment,
shape, position or orientation of a figure using which is the ratio of the observed to the total
Unit 15 different operations on a coordinate grid number of observations in an experiment
12-hour notation: Away of expressing Translation: Sliding an image along the Fair: An experiment in which all outcomes are
time by dividing 24 hours of a day into two .v-axis and/or v-axis, keeping the size and equally likely or have the same probability
sections, a.m. and p.m. shape unchanged: moving every point in Favourable outcome: Outcome of an event
a shape the same distance in the same
24-hour notation: A way of expressing time that one is interested in
by dividing a day into 24 hours where day direction Mutually exclusive outcomes: Outcomes
runs from midnight to noon and nighttime runs that cannot occur at the same time
from noon to midnight. Unit 17
Outcome: Possible results of an activity or
Seconds: A unit to tell very small amounts of Bar ctiart: A graph that represents categorical event
time data using horizontal or vertical bars with Probability line: A number line labelled from
Analogue clock: A clock which has moving height proportional to the values they 0 to 1 that shows the chance or likelihood of
hands and usually uses a 12-hour display to represent an event happening
indicate time Bar-line graph: A graph similar to bar chart
Probability Tree Diagram: A possibility
Area: The amount of space that a flat surface that uses horizontal or vertical thick lines diagram that is used to show ail possible
with height proportional to the values they
covers outcomes and their probabilities along the
represent
Arrival: The act of reaching a destination branches
Bimodal: A data set with two modes
Composite figure (Compound shape): A Probability: Likelihood of an outcome
•shape that is made up of two or more basic Central tendency: A 'middle' value of a data Relative Frequency: Calculated as an
shapes set that tells us approximately what most of experimental probability where the number of
the values in the set is close to
Cube: Three-dimensional shape in which the times an event occurs is divided by the total
Frequency diagram: A graph similar to bar
faces are squares number of trials done
chart but used to represent grouped data
Cuboid: Three-dimensional shape in which Sample Space: All possible outcomes of an
the faces are squares and rectangles Key: A reference or legend that describes activity or experiment
what each sector represents
Departure: The act of leaving Theoretical Probability: The ratio of the
Mean: The average value of all the data In a number of favourable outcomes to the
Digital clock: A clock which shows lime using
dataset, calculated by dividing the sum of all total number of possible outcomes in an
numbers and usually uses a 24-hour display
values by the number of values experiment
to indicate time
Median: The middle value of a group of
Perimeter: The total length around the sides
ranked data set
of a shape
Modal class: The group of data with the
Surface area: The total area of ail the faces
highest frequency
of a solid