6.NR.2.1
What is the mean of the data set: 5, 10, 15?
10
This type of graph uses bars to show the frequency of categories like favorite colors or types of pets.
bar graph
What is the median of 3, 5, 7?
5
Which measure of center (Mean, Median, Mode, range) is best for 1, 2, 3, 100?
Median
What happens to the mean if a very high number is added?
it increases
Find the mean of 12, 14, 16, 18.
15
this type of plot shows individual data points above a number line, often used to display small sets of numerical data.
dot plot
What is the range of 2, 4, 6, 8?
6
What does a symmetrical distribution suggest about the mean and median?
They are equal
What happens to the median if a low number is removed?
It increases
A student scored 80, 85, 90, 95 on four tests. What is the mean score?
87.5
This graph divides data into four equal parts and shows the minimum, maximum, median, and quartiles
box plot
Which set has greater variability: A) 10, 10, 10, 10 or B) 5, 10, 15, 20?
B
Which measure is most affected by extreme values?
Mean
Which graph best shows the impact of adding a data point?
Dot plot
The mean of five numbers is 20. Four of the numbers are 18, 22, 19, and 21. What is the fifth number?
20
A class collected data on the number of books students read in a month. To show how many students read between 5 and 10 books, which type of graph would best display the frequency of that range?
histogram
A student collects data on daily steps: 3000, 3200, 3100, 3050. What is the mean and range?
Mean = 3087.5, Range = 150
Why might you choose median over mean in a skewed data set?
Median is less affected by outliers
A box plot shows a median of 50. If a new data point of 100 is added, what changes?
Mean increases, median may shift
A class of 6 students has a mean score of 75. If one student’s score is changed from 60 to 90, what is the new mean?
80
A teacher asks students their favorite fruit and records: 8 like apples, 10 like bananas, 4 like grapes, and 3 like oranges. If you wanted to compare these categories visually, what graph should you make and what would be the tallest bar?
bar graph and the tallest bar is bananas
Two experiments show scores: Set A: 70, 72, 74, 76; Set B: 60, 80, 90, 100. Which has greater interquartile range and why?
Set B, more spread
A data set is uniform. Which measure of center and variability would best describe it?
Mean and range
A dot plot shows scores clustered around 80. If one score of 20 is added, how does this affect the mean and median?
Mean decreases, median may stay the same