By Barbara Illowsky, Susan Dean
This better half to Collaborative data (col10522) through Illowsky and Dean presents a few extra assets to be used through scholars and teachers. This content material is designed to counterpoint the textbook by way of delivering video tutorials, direction administration fabrics, and pattern challenge units.
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Extra resources for Collaborative Statistics: Supplemental Course Materials
A. 7769 b. 9975 c. 0025 d. 12. (Go to Solution) 70% of 9-year old children will play video games per day for at most how long? a. 60 hours b. 41 hours c. 71 hours d. Cannot determine Use the following information for questions 13 and 14. Research has shown that studying improves a student舗s chances to 80% of selecting the correct answer to a multiple choice question. A multiple choice test has 15 questions. Each question has 4 choices. 13. (Go to Solution) What is the distribution for the number of questions answered correctly when a student studies?
D. 9. (Go to Solution) Find the probability that both marbles are red. A. B. C. D. 10. (Go to Solution) Approximately 70% of U. S. adults had at least one pet as a child. We randomly survey 60 U. S. adults. We are interested in the number that had at least one pet as a child. The probability that at least 3 adults had at least one pet as a child means: A. P(X = 0) + P(X = 1) + P(X = 2) B. P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) C. P(X = 4) + P(X = 5) + P(X = 6) + ... + P(X = 60) D. P(X = 3) + P(X = 4) + P(X = 5) + ...
How long they had been waiting, and then calculated the average wait time for those people. 14. (Go to Solution) The distribution of the average wait times is: a. N( 10 , 1. 0050 ) b. U( 0 , 20 ) c. 7735) d. 15. (Go to Solution) The probability that the average wait time is no more than 15 minutes is a. 1 b. 0. 7500 c. 0. 7769 d. 16. (Go to Solution) Which probability statement best describes the graph? The horizontal axis has the label Xbar. a. P( Xbar > 6 ) b. P( Xbar < 3 ) c. P( Xbar > 6 or X < 3 ) d.
Collaborative Statistics: Supplemental Course Materials by Barbara Illowsky, Susan Dean