Measures of Central Tendency
B&W/Quartiles
Graphs
Probability
Counting Principle, Permutations & Combinations
100
In the number set 2,4,6,6,8,10, what is the mode?
6
100
What type of graph would you choose to show how you spend the hours of the day?
circle graph
100
A bag contains 12 balls; 3 red, 4 blue, and 5 yellow. What is the probability of selecting a red ball at random?
3/12 or 1/4
100
A sandwich shop offers a choice of two types of bread, three types of cheese and three types of meat. How many different sandwiches could you make?
2*3*3 = 18 sandwiches
200
Rearrange the following numbers to fine the median; 6,3,9,6,1,3,7
6
200
Stem and Leaf Plot
200
A spinner has 4 equal pieces to it, labeled 1, 2, 3, or 4. What are the odds that you will spin and land on an even number?
2:2 or 1:1
200
A sandwich shop offers a choice of two types of bread, three types of cheese (or no cheese) and three types of meat (or you can choose no meat). How many different sandwiches could you make (a sandwich must contain a meat or a cheese)?
30 different sandwiches.
300
If I was looking for the number that occurred most, I would be looking for what? Mean, Median, or Mode?
Mode
300
The Interquartile range contains what percent of the data points?
50%
300
What type of graph is best for showing change over time?
Line graph
300
In a drawer with 4 gray socks, 6 white socks and 2 black socks, what is the probability you will pull out 2 white socks (if you do NOT replace the first sock you pull out.)
6/12 * 5/11 = 5/22
300
How many ways can you arrange 4 different books on a shelf?
24
400
Briefly define mean, median, range and mode. Double points if you sing the song.
?
400
y-axis does not start at 0
400
In a drawer with 4 gray socks, 6 white socks and 2 black socks, what is the probability you will pull out 1 white sock then 1 black sock (if you DO replace the socks after the first pull)
6/12 * 2/12 = 1/12
400
A coach must choose five starters from a team of 12 players. How many different ways can the coach choose the starters? The order of the 5 players does not matter.
(12* 11* 10* 9* 8)/ 5! = 792
500
When would median be a better measure of central tendency than mean?
When there are outliers.
500
Explain how to tell if a number is an outlier.
it is more than 1.5 times the IQR away from the lower or upper quartiles.
500
What can you tell about the distribution of this data? http://syllabus.bos.nsw.edu.au/assets/mathematicsk10/images/box_pulse_rate.png
?
500
In a drawer with 4 gray socks, 6 white socks and 2 black socks, what is the probability you will pull out 2 socks that match? (you do NOT replace the sock after the first pull)
Matching grays: 4/12 * 3/11 = 1/11 Matching whites: 6/12 * 5/11 = 5/22 Matching blacks: 2/12 * 1/11 = 1/66 1/11 + 5/22 + 1/66 = 22/66 = 1/3
500
What is the probability of guessing the correct batting order of 9 baseball players if there are a total of 25 players on the team?
1/741354768000
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