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Question: In a discrete mathematics class every student is a major in computer science or mathematics, or both. The number of students having computer science as a major (possibly along with mathematics) is 25; the number of students having mathematics as a major (possibly along with computer science) is 13; and the number of students majoring in both computer science and mathematics is 8. How many students are in this class?
Scores by women on the SAT-I test are normally distributed with a mean score of 998 and a standard deviation of 202. scores by women on the ACT test are normally distributed with a mean of 20.9 and a standard deviation of 4.6 assume the two tests ..
question 1 the data displayed below represents the electricity cost during a recent month for a random sample of 50
What is dispersion? Briefly name five measures of dispersion. Describe the characteristics of the standard deviation. Explain
Find out the least-squares regression line and interpret its slope.
Using the above database, compute a t-test comparing males' and females' heights. You must determine which type of t-test to compute. Write a short interpretation of the results.
The Oil Price Information Center reports the mean price per gallon of regular gasoline is $3.26 with a population standard deviation of $.18.
Find the probability that an individual graduate will have a salary over $45,000. A group of nine graduates will have a group average over $45,000.
A questionnaire will be published and the first 1000 completed questionnaires will be analyzed. Which of the following errors will be associated with the sample? Sampling errors only.
What is the probability that the majority of the selected parents put their children who are under the age of 6 in car seats?
A firm plans to hire 100 employees during the year. It expects that 25 of these employees will obtain graduate degrees within the next 5 years of being hired.
Regulations related to the release of personal and medical information of a patient. Describes the relevant components of the medical record you expect the family physician will want to see.
Suppose that this mean applies to the population of all Ultra batteries. Complete the statements about the distribution of lifetimes of all Ultra batteries.
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