Mean, Median, Mode and Range
Outliers
Populations and Samples
Graphs
Bias
100
To get this, you add the items in the data set and divide by the number of data items.
What is mean?
100
This is a value in a data set that is much different from all the other values.
What is an outlier?
100
All of the middle school students in California is an example of a population. The middle school students at LAMS is an example of this.
What is a sample?
100
A graph used to organize and display data so that the frequencies can be compared
What is a Stem-and-Leaf Plot?
100
This type of sample does not represent the population.
What is a biased sample?
200
This number is found by subtracting the smallest data item from the largest data item in a data set.
What is range?
200
This is the outlier in the following set of data about different animal speeds (in miles per hour): 30, 35, 70, 32, 40, and 45.
What is 70?
200
In this type of sample, each member of the population has an equal chance of being selected.
What is a random sample?
200
A graph that uses vertical or horizontal bars to display data
What is a bar graph?
200
This type of question leads people to give a certain answer.
What is a biased question?
300
Examine this data set. 5, 4, 5, 7, 5, 6. The number 5 is this.
What is the mode?
300
The LAMS football team won 11 games, 5 games, 7 games, 5 games and 7 games from the years 1998-2002. This value represents the outlier.
What is 11?
300
You want to know the types of calculators used by middle-school students across the country. Because the population is too large, you would use this to best represent your population.
What is a random sample?
300
A bar graph that shows the frequency of data within equal intervals
What is a histogram?
300
After the soccer game, Jennifer surveyed both players and spectators to find out the most popular hobby among teenagers in her town. The results of her survey showed that 75% of the people said that playing sports was the most popular hobby. This sample may be biased. To get a better representation of the population she should do this.
What is conduct a random sample?
400
This is found by writing the data set in order from least to greatest, and then finding the middle number.
What is the median?
400
An outlier can greatly affect two of these in a data set (mean, median, mode, and range).
What are the mean and range of a data set?
400
About 22% of Americans go to the beach each year. Amanda surveys a random sample of people from Marina. 56 people said they went to the beach and 24 people said they did not go to the beach. This percentage is greater than the national average. Find that percentage.
What is 70%
400
A graph with points plotted to show a possible relationship between two sets of data
What is scatter plot?
400
A biased question may include one or more of these types of words.
What are adjectives?
500
Seven members of the volleyball team had the height of their vertical jumps measured (in inches). The results were: 13 inches, 23 inches, 21 inches, 20 inches, 21 inches, 24 inches, and 18 inches. This number is the mean of the data set.
What is 20 inches?
500
The LAMS football team won 11 games, 5 games, 7 games, 5 games and 7 games from 1998 through 2002. Find the mean of the data with and without the outlier.
What are 7 (with the outlier) and 6 (without the outlier)?
500
Los Arboles Middle School has 580 students. Johnny Pancake surveys a random sample of 30 students and finds that 12 of them have pet cats. This number represents the number of students who are likely to have pet cats.
What is 232?
500
A graph that displays the highest and lowest quarters of data as whiskers, the middle two quarters of the data as a box, and the median
What is a box and whisker plot?
500
This question was asked of drivers. Would you rather drive this luxurious and roomy sedan or this tiny compact car? Write this question in a way that is not biased.
Would you rather drive the sedan or compact car?
M
e
n
u