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Eligibility. A university requires its biology majors to take a course called BioResearch. The prerequisite for this course is that students must have taken either a Statistics course or a computer course. By the time they are juniors, 52% of the Biology majors have taken Statistics, 23% have had a computer course, and 7% have done both.
a) What percent of the junior Biology majors are ineligible for BioResearch?
b) What's the probability that a junior Biology major who has taken Statistics has also taken a computer course?
c) Are taking these two courses disjoint events? Explain.
d) Are taking these two courses independent events? Explain.
Construct a double-stem-and-leaf plot for the life span of the fruit flies using the stems 0∗, 0·, 1∗, 1·, 2∗, 2·, and 3∗such that stems coded by the symbols _ and · are associated, respectively, with leaves 0 through 4 and 5 through 9
What is the observed or computed value of t? What is the value of the degrees of freedom that are reported in the output? What is the level of significance reported in the output
A reference book lists the following maximum life spans (in years) for animals in captivity:- What is the mean of these maximum life spans? The median?
Markland Manufacturing intends to increase capacity by overcoming a bottleneck operation by adding new equipment. Two vendors have presented proposals.
With reference to Exercise 78, use the result of part (b) of Exercise 39 to construct a 99% confidence interval for the mean weekly net profit of restaurants with a seating capacity of 210 at a location where the daily traffic count averages 14,00..
question an electronics company is about to launch a new product. if the serial number for each piece produced has
The snow tire company wants to advertise 10% of their snow tires last longer than 45,000 miles. If the standard deviation remains at 2500 miles, what must the mean life-span of the tread be improved to? Show work.
What is the expected value of playing roulette if you bet $18 on red ?
The first unit produced after the calibration effort is found to be defective. Given this information, what is the probability that the machine is in adjustment?
According to the survey, 37% of the adults are concerned that employers are monitoring phone calls. Use the binomial distribution formula to calculate the probability that:
Categorize the following as discrete or continuous random variables.
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