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# Introduction to Statistics Textbook Final Exam

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!

#### Question 1 1. A researcher is studying a population, and decides to use simple random sampling. Why might they have made this decision?

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Question 2
2.
Phyllis is also in Jonathan's psychology class. She knows she scored in the 90th percentile on his psychology test. The professor gives the students the following list of grades (without names):

51, 37, 87, 95, 99, 78, 63, 96, 68, 84, 92

Assuming that there are 11 students in the class, what was Phyllis's test score?

#### Question 3 3. When one event affects the outcome of another event, we call them:

#### Question 4 4. A statistician is analyzing a data set, and notices that the values are clustered quite close together. What measure of central tendency would be optimal for this data set?

#### Question 5 5. During the first four Summer Olympic games attended by the United States, these medal counts were awarded. If there is an outlier, identify it from the number of medals won during these Olympic Games.

#### Question 6 6. What do we call areas in a data set where no observations have been made?

#### Question 7 7. What is a visual representation of data where numbers on the left side of a chart show one part of each value, while numbers on the right side of the chart show the other?

#### Question 8 8. Histograms are very similar to what other graphical representation of numbers?

#### Question 9 9. What is a type of random sampling where the variables have an equal, and unsystematic, chance of selection?

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Question 10
10.
Select the word or phrase that best fills in the blank:

If the index is not a _____, round the number up, then count the values in the data set from least to greatest until you reach the index.

#### Question 11 11. A sample is usually intended to be

#### Question 12 12. Can you identify this chart?

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Question 13
13.
Find the maximum in the data set:

27, 26, 33, 45, 38, 38, 58, 54, 19, 22, 31

#### Question 14 14. Imagine you are looking at a graph that shows a correlational line moving from the bottom left corner of the graph to the upper right corner. Which correlation coefficient below would best represent the pattern of data while remaining within the possible range of correct calculations?

#### Question 15 15. What is it called when the probability of an event is not affected by a previous event?

#### Introduction to Statistics Textbook Final Free Practice Test Instructions

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!