Mean,Median,Mode
Dot Plots
Box Plots
Probability
100
Find the Median
9,10,6,5,6
What is 6
100
the mode of the data
What is 10
100
what is 6
100
Probability of choosing 5 of diamonds
what is 1/52
200
Find the mode
5,7,9,9,9,8,4,4,10,10
What is 9
200
Is the data skewed left or skewed right
what is skewed left
200
what is 75%
200
Probability of the spinner landing on a 3 or 1
what is 3/32
300
Find the mean
12,12,12,5,6,6,8,9,9,10,13,13,13
What is 9.85
300
Find the median of the data
what is 50
300
Which period has a higher median
what is second period
300
Probability of rolling a 6 and then a 1
what is 1/3
500
Some data was analysed in Lake Victoria over the course of one day.
Explain why some of the results could be unreasonable.
Many answers possible!
It was just recorded in one day - should the measurements be recorded over multiple days?
There could have been a recording error.
How accurate were their measurements?
500
Some students were surveyed on their exercise in the past week as well as their video games usage. Explain what these results show. State why these results could be unreasonable.
Students generally played video games for longer than they exercised.
The results could be unreasonable if there was an error in the data collection process, or if there was a recording error, or if incorrect data was given by the students (they could have under of over estimated).
500
sState the shape of the distributions of these boxplots.
A: Approximately symmetrical
B: Approximately symmetrical
C: Negatively skewed
500
In a box there are 4 green marbles and 3 red marbles. What is the probability of choosing two red marbles in a row, without replacement?
(3/7) x (2/6) = 1/7