StatsExam

# StatsExam - Review Assessment Final Exam User Submitted...

This preview shows pages 1–6. Sign up to view the full content.

Review Assessment: Final Exam User Elizabeth S Knowles Submitted 4/30/08 8:21 PM Name Final Exam Status Completed Score 135 out of 168 points Time Elapsed 1 hours, 7 minutes, and 35 seconds out of 4 hours and 55 minutes allowed. Instructions Question 1 3 out of 3 points Construct the relative frequency distribution that corresponds to the given frequency distribution. Selected Answer: Correct Answer: Question 2 3 out of 3 points Find the standard deviation for the given data. Round your answer to one more decimal place than the original data. 15, 42, 53, 7, 9, 12, 14, 28, 47

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Selected Answer: 17.8 Correct Answer: 17.8 Question 3 3 out of 3 points Use the given paired data to construct a scatterplot. x 1 -3 -3 -2 3 5 -1 8 -4 -1 y -4 -6 -7 2 3 3 -6 3 -3 -3 Selected Answer: Correct Answer: Question 4 3 out of 3 points
Find the mean of the data summarized in the given frequency distribution. The test scores of 40 students are summarized in the frequency distribution below. Find the mean score. Selected Answer: 73.5 Correct Answer: 73.5 Question 5 3 out of 3 points Construct the cumulative frequency distribution that corresponds to the given frequency distribution. Selected Answer: Correct Answer: Question 6 3 out of 3 points Find the mean of the data summarized in the given frequency distribution. The test scores of 40 students are summarized in the frequency distribution below. Find the mean score.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Selected Answer: 77.3 Correct Answer: 77.3 Question 7 3 out of 3 points Solve the problem. The maximum value of a distribution is 14.4 and the minimum value is 4.9. Use the range rule of thumb to find the standard deviation. Round results to the nearest tenth. Selected Answer: 2.4 Correct Answer: 2.4 Question 8 3 out of 3 points Use the empirical rule to solve the problem. At one college, GPA's are normally distributed with a mean of 2.7 and a standard deviation of 0.5. What percentage of students at the college have a GPA between 2.2 and 3.2? Selected Answer: 68% Correct Answer: 68% Question 9 3 out of 3 points Answer the question, considering an event to be "unusual" if its probability is less than or equal to 0.05. Is it "unusual" to get 9 when a pair of dice is rolled? Selected Answer: No Correct Answer: No Question 10 3 out of 3 points Estimate the probability of the event. A polling firm, hired to estimate the likelihood of the passage of an up-coming referendum, obtained the set of survey responses to make its estimate. The encoding system for the data is: If the referendum were held today, estimate the probability that it would pass. 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0
Selected Answer: 0.6 Correct Answer: 0.6 Question 11 3 out of 3 points Solve the problem. How many 5-digit numbers can be formed using the digits 1, 2, 3, 4, 5, 6, 7 if

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 16

StatsExam - Review Assessment Final Exam User Submitted...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online