Averages
True or False - the value that occurs the most frequently is the MODE.
True.
The difference between the highest and lowest value is the....what?
Range
PE
What's the probability of an event that is IMPOSSIBLE?
0 or 0%
What is the rule for this number pattern? 1, 4, 7, 10, ........
Increases by 3.
To find the MEAN of a data set I.....do what?
Add up all values, and then divide by how many values there are.
Find the RANGE:
2, 4, 6, 8, 10
8
How many children do Ms Craft and Ms O'Neill each have?
Ms Craft - 2 sons
Ms O'Neill - 1 son
What's the probability of rolling a 2 with a fair die?
1/6
Is x = 2 a horizontal or vertical line?
Vertical
Find the MEDIAN of: 2, 2, 3, 3, 5
2
What is a HISTOGRAM?
A bar/column chart that shows the distribution of data.
Ms O'Neill has trekked to the base of which mountain?
Mount Everest.
The probability of it raining tomorrow is 20%. What's the probability of its COMPLEMENT?
80%
Is y = -3 horizontal or vertical?
Horizontal
Find the MEAN:
2, 3, 4, 7, 4
4
Which has the largest range:
2,3,3,4,4,5,5 or 3,4,9
3,4,9 (the range is 6)
What did Ms O'Neill do for work for over 20 years before becoming a teacher?
Worked at the ATO (Australian Tax Office), originally as a mathematician.
What is the sample space of the word WEDNESDAY
A, D, E, N, S, W, Y
What is the gradient (m) of the line y = 2x + 3
Gradient (m) = 2
Find the MEDIAN of: 2, 2, 3, 5, 3, 3, 2
3 (2, 2, 2, 3, 3, 3, 5)
The lowest value in a data set is -2. The range is 6. What must the highest value be?
4
(-2 + 6 = -4)
Ms Craft appears in a video on YouTube! What's the video of?
Driving, crashing and rolling a race car.
I have a bag of 5 yellow lollies and some green lollies. P(green) is 1/2. How many lollies are in the bag?
10
Which is steeper?
y = 2x or y = 5x
y = 5x