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1. A plumbing contractor puts in bids on two large jobs. Let the event that the contractor wins the first contract be A and the event that the contractor wins the second contract be B. Which of the following Venn diagrams has shaded the event that the contractor wins exactly one of the contracts?
A.
B.
C.
2. A fifth grade teacher gives homework every night in both mathematics and language arts. The time to complete the mathematics homework has a mean of 30 minutes and a standard deviation of 10 minutes. The time to complete the language arts assignment has a mean of 40 minutes and a standard deviation of 12 minutes. The time to complete the mathematics and the time to complete the language arts homework has a correlation ρ = -0.3. The mean time to complete the entire homework assignmentA. is less than 70 minutes since the negative correlation tells you that more time on one assignment will be associated with less time on the second assignment.B. is 70 minutes.C. is greater than 70 minutes since the measurements are correlated which raises the mean regardless of the sign of the correlation.
Evaluate the mean wait time and throughput rate
Suppose we drew a histogram of these 18 death rates using class intervals 1 — 1.9, 2 — 2.9, 3 — 3.9, 4 — 4.9 and 5 — 5.9. Using the histogram, we would
What statistical procedure was used to analyze data in study B?
MATH1550H: Assignment: Questions: Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.
The world record time (in minutes) in the marathon is plotted versus the year in which the record was set for men and women separately. The plotting symbol o is used for men and x for women. The data include only records set between 1908 and 1988.
Caselet on McDonald’s vs. Burger King - Waiting time
A study sponsored by American Express Co. and the French government tourist office found that old American stereotypes about French unfriendliness weren't true.
A busy landscaping supplies company sells wood chips for garden mulch. The mulch is sold by the cubic metre and delivered to households in a small truck.
LINEAR PROGRAMMING MODELS
A survey of college students collected information on several variables: Distance from Home, Age, Major, Gender, and Class. The variable Major is
Suppose the probability of the worst-case scenario increases Compute the expected value of perfect information
Plan the scatter diagram
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