MMMR
What is the mean of these numbers: 4, 6, 8, 10, 12?
8
What type of graph would you use to show how many pets students in a class have?
Bar graph
What is 50% of 20?
10
What is the probability of flipping heads on a coin?
1/2
What does “mean” mean in math?
The average of a set of numbers
Find the median of this data set: 3, 7, 9, 2, 6.
6
On a line graph, what does the x-axis usually represent?
Time or the independent variable
A shirt costs $30. It’s on sale for 10% off. How much is the discount?
$3
A bag has 3 red marbles, 2 blue marbles, and 5 green marbles. What is the probability of pulling a red?
3/10
OR
30%
What is a bar graph?
A graph that uses bars to show amounts or comparisons.
What is the mode of the following numbers: 1, 3, 3, 4, 5, 6, 6, 6, 7?
6
A bar graph shows the number of books read by students. If Sam read 12 books and the bar stops at 10, what’s wrong?
The bar graph is inaccurate or incomplete—it doesn’t go high enough.
You scored 18 out of 20 on your quiz. What percentage is that?
90%
You roll a 6 sided die. What is the probability of rolling a number greater than 4?
2/6
OR
1/3
Define probability.
The chance or likelihood that something will happen.
Find the range of this data set: 14, 10, 7, 18, 9, 13.
11
You are creating a graph to compare the height of plants over 5 weeks. What graph type should you use and why?
Line graph — to show change over time.
A video game originally costs $80. It is now 25% off. What is the sale price?
60
A spinner has 8 equal sections: 2 red, 2 blue, 3 green, 1 yellow. What is the probability of NOT landing on green?
5/8
What is the range in a data set?
The difference between the highest and lowest numbers.
This is the data set: 5, 8, 8, 10, 12, 15, 15, 15, 18, 20.
Find the mean, median, and mode.
Mean = 12.6, Median = 13.5, Mode = 15
A graph’s title says “Student Test Scores,” but the y-axis says "Height in inches." What mistake has been made?
The y-axis label does not match the graph’s data.
A store increased prices by 20%. A backpack used to cost $45. What’s the new price?
54
A bag has 4 yellow, 3 purple, and 3 black marbles. If you pick two marbles without replacement, what’s the probability that both are yellow?
4/10 × 3/9 = 12/90 or 2/15
What does it mean when an event has a probability of 1?
It is certain, it will definitely happen.