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Over the years, a realtor estimates that 50% of those who contact her about a listing end up allowing her to provide a guided tour of the property, 20% of those who take a guided tour follow up with a request for more information about the property, and 2% of those who make the follow-up informational request actually end up making an offer on the property. The realtor has just taken a young couple on a guided tour of one of her listed properties.
Based on the probability estimates provided above, what is the probability that the young couple will actually make an offer on the property?
a test for breast cancer correctly classifies 95 of malignant tumours as malignant but also incorrectly classifies 1 of
Assume these data constitute a random sample of such funds, and use them to test the claim that the average world stock fund made more than 25% for its investors during this period.
in an inertia welding experiment a sample of 50 welds were tested. the sample mean and sample standard deviation of the
you have been recently hired as a marketing analyst in an advertising agency. you are assigned the task of assessing
reducing fat and saturated fat in your familys diet is important to maintaining heart health and reducing calories.
a large city claims that it provides free lunch to more than 30 of its elementary school students. a researcher selects
What is the probability of encountering a person of type A blood? What is the probability of encountering a person who has either type A or type AB blood?
A standard deviation of 8. If 100 people are randomly selected, find the probability that their mean blood pressure will be greater than 122.
The specifications for the thickness of each plate are 3± 0.2 cm. Assuming the weld thickness to be negligible, determine the tolerances for the assembly thickness.
The GMAT scores of MBA students is assumed to be distributed normally with a mean of 530 and a standard deviation of 80. The GMAT scores of ten students are selected randomly.
Compute the mean and median and determine the shape of the distribution based on the sample data? Explain your conclusion.
A study on body types gave the following results: 45% were short; 25% were short and overweight; and 24% were tall and not overweight.
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