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Consider 16 gallons of genetically modied tomatoes. Suppose that 75 % of those tomatoes have an increased resistance to pests, 50 % were engineered to have a longer shelf life, and 30 % have an increased resistance to pests and were engineered to have a longer shelf life. If one of these tomatoes is randomly selected, compute the probability that the tomato
(a) has an increased resistance to pests, but was not engineered to have a longer shelf life;
(b) has an increased resistance to pests or was engineered to have a longer shelf life;
(c) does not have an increased resistance to pests, but was engineered to have a longer shelf life;
(d) does not have an increased resistance to pests and was engineered to have a longer shelf life.
The length of a human pregnancy has a mean of 267 days and a standard deviatin of 16 days. Assume a normal distribution. What percent of pregnancies last over 283 days.
Predict the number of accidents per year (to the nearest whole number) for a person whose age is 45 and who works 42 hours per week.
Use the binomial distribution in the Data Analysis add - in to simulate the distribution of men and women among the next ten arrivals at an emergency room, assuming that, on average, six people out of ten who arrive are men.
In testing a new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 12 patients using the drug is selected. Find the probability that: exactly three will have this mild side effect.
Furnish 2 offices each with a desk, chair, and file cabinet and 2 bookcases. At a local store there are 6 models of desks, 8 models of chairs 4 models of file cabinets and 10 models of bookcases.
suppose two dice are rolled. let x be the random variable measuring the sum of the two numbers rolled.a find the
the table gives population densities for ring-necked pheasants in number of pheasants per acre on pelee island
1. a researcher sends a questionnaire to 6000 individuals. she gets back 5000 responses. the percentage of women among
The monthly rate of return for the mutual fund Invest 2000 follows a Normal distribution with mean 0.75% and standard deviation 0.3%.
suppose that you wanted to determine if your eastern region of wholesalers differed from your western region of
The length of time for one individual to be served at a cafeteria is a random variable having a lognormal distribution with a mean of 10 minutes and standard deviation of 2 minutes.
Critically illustrate out the difference between a histogram and a dot plot. When might a dot plot be better than a histogram?
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