Area and Volume 1
Data 1
Trigonometry 1
Trigonometry 2
Data 2
100
What is shape made up of two or more basic shapes?
Composite
100
What is the median?
The middle score
100
What is the longest side in a right-angled-triangle called?
Hypotenuse
100
What is the angle of depression?
The angle of depression is the angle looking down
100
How do we calculate the range?
Highest score - lowest score
200
What is the formula for area of a parallelogram?
base x perpendicular height A=bh
200
Quantitative data are represented by quantities and can be _________ or continuous.
Discrete
200
What is SOHCAHTOA?
sine = opposite divided by hypotenuse cos = adjacent divided by hypotenuse tan = opposite divided by adjacent
200
What is true bearings?
Three-figure bearings are angles between 000° and 360°.
200
Which of the following measures of location can be used for categorical data: mean, mode, median
Mode is the only one.
300
What is the formula for area of a trapezium
1/2 x sum of parallel sides x perpendicular distance between sides (height) A=1/2(a+b)h
300
A distribution is _______ skewed if its tail point to the right, because the mean is above the mode and median
Positvely
300
Tan is ________ for obtuse angles
Negative
300
Sine is __________(positive/negative) for obtuse angles
Positive
300
What is the difference between population standard deviation and sample standard deviation?
Population standard deviation are used when we know all the scores in the population, while sample standard deviation is used when only a sample of scores are known.
400
What is the are of an ellipse?
A=πab a= length of the semi-major axis b= length of the semi-minor axis
400
What is a stratified sample?
Random sample taken from each stratum or layer of a population.
400
What is the formula for the sine rule?
a_ ₌ b ₌ c sin A sin B sin C
400
What do we need to know in order to use the cosine rule?
We need to know one angle and two sides to find the third side
400
How do an outlier impact on the interquartile range?
Does not impact, because the interquartile range are a range between the upper quartile and the lower quartile.
500
What is the surface area of a closed cylinder?
A = 2πrh+2πr²
500
Which of the three measurements of location of a data set would be greatest affected by an outlier?
Mean
500
How can we calculate the area of a triangle without knowing the height?
1/2 x ab sin C
500
What is a plane table radial survey?
In a plane table radial survey, a table is placed in the middle of the field and the angles and distances to each corner are measured and marked on a large sheet of paper pinned to the desk.
500
Which button on the calculator do we use to find sample standard deviation?
sx or xσn-1
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