Statistics Exam Quiz
Complete this quiz to demonstrate your understanding of key statistics concepts. Please answer all questions carefully.
Student Full Name
*
First Name
Last Name
Student Email Address
*
example@example.com
Student ID Number
*
Instructions: Please read each question carefully and select or enter the correct answer. All questions are mandatory.
1. What is the mean of the following numbers: 4, 8, 6, 5, 3, 7?
*
5.5
6.0
6.2
Other
2. Which of the following is a measure of central tendency?
*
Mean
Variance
Standard Deviation
Range
3. Identify whether the following statements are True or False.
*
Rows
True
False
The median is always one of the data values.
1
2
Variance can never be negative.
3
4
A histogram shows the frequency distribution of data.
5
6
4. Calculate the probability of getting heads in a single coin toss.
*
0.25
0.5
1.0
Other
5. What is the mode in the following data set: 2, 4, 4, 6, 7, 8, 4?
*
2
4
6
7
6. Match the statistical terms to their definitions.
*
Rows
Mean
Median
Mode
The value that appears most frequently in a data set
7
8
9
The sum of all values divided by the number of values
10
11
12
The middle value when data are arranged in order
13
14
15
7. Which graph is best for displaying the distribution of a categorical variable?
*
Histogram
Bar Chart
Scatter Plot
Line Graph
8. Rate your confidence in your statistics knowledge (1 = Not confident, 5 = Very confident).
*
1
1
2
3
4
5
5
1 is 1, 5 is 5
9. If the probability of event A is 0.3 and event B is 0.4, what is the probability of both A and B occurring if they are independent?
*
0.12
0.7
0.1
0.3
10. Briefly explain what a standard deviation represents in statistics.
*
Submit Quiz
Should be Empty: