Geometry Flashcards
What is probability?
A value that tells us how likely that event is to happen
What does zero on a number line mean?
Means an event cannot happen. It is impossible
What does one on a number line mean?
The event is going to happen. It would definitely and certainly happen
What does half on a number line mean?
Means an event is just as likely to happen and not to happen
What does less than half on a number line mean?
It is unlikely
What does greater than half on a number line?
It is likely
What is a trial in probability?
The amount of times of doing it
What does a few trials results in?
It results in the answer being more likely to be incorrect
What does many trials results in?
Many trials results in the increase chances of expected probabilities
What is the formula of the probability of an event?
of outcomes that satify requirements ÷ total # of possible outcomes
What is a mean?
It is the average. The mean of the data is the total sum of all the values and we divide by total number of values
What is the mode?
The most often. No mode, one mode, more than one mode
What is the median value?
First arrange in ascending order. It is the data value in the middle. if there are two add them together and divide by two (average).
What is the range?
Highest number - lowest number.
What is a parallelogram?
A quadrilateral with both pairs and opposite sides parallel
What is a rectangle?
A parallelogram with one angle equal to 90°
What is a rhombus?
A parallelogram with two adjacent sides equal
What is a square?
Rectangle with two adjacent sides equal
What is a kite?
A quadrilateral with two pairs of adjacent sides equal
What is a trapezium?
A quadrilateral with only one pair of opposite sides parallel
What does the word isosceles mean?
It is derived from two Greek words isos and skelos meaning equal leg
What does the word scalene mean?
Scalene is derived from a Greek word skalos meaning uneven
What does the word equilateral mean?
Derive from to Latin words aequi and latera meaning equal sides