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Employment data at a large company reveal that 75% of the workers are married, 36% are college graduates, and half of the college graduates are married. What is the probability that a randomly chosen worker is:
Question 1. Neither married nor a college graduate? (answer should be a probability, that is, a number between 0 and 1).
Question 2. Married but not a college graduate? (answer should be a probability, that is, a number between 0 and 1).
Question 3. Married or a college graduate? (answer should be a probability, that is, a number between 0 and 1).
What is the characteristic function of N? What is the mean and variance of N? What is the pmf of N? What is the probability that N is an even number?
Four young children were monitored closely over a period of several weeks to measure how much they watched violent television programs and their amount of violent behavior toward their playmates.
Assume the researcher's rats can be considered an SRS from the population of all laboratory rats. The mean Math SAT score of these students is found to be 560, 80 points higher than the national average.
In our discussions of basic probability theory the concepts of mutually exclusive events and independent events share prominent roles.
If the shop does not want to give more than 1% of its customers a free lube and oil change service, how long should the guarantee be?
Evaluate each of the functions below at x = 1, 2, 4, 8, and 16. Plot the graph of each function. Classify each as linear, quadratic, polynomial, exponential, or logarithmic, and explain the reasons for your classifications.
Name an application for the use of ANOVA. This can be in a professional setting, hobby, or something you find on the internet. What are some business situations where ANOVA would be more appropriate than a Z or T test?
In an online survey of 4001 respondents, 8% were classified as productivity enhancers who are comfortable with technology and use the internet for its practical value. Suppose you select a sample of 400 students at your school, and the population ..
Polls showed the two main candidates in the 2004 presidential election were nearly tied on the day before the election. To predict the winner a newspaper would like to have a poll that has margin of error less than 1%. Roughly how large a sample w..
To test whether there is any association between two variables using Chi-Square test for independence.
Find out the mean for your 3 numbers. They signify your neighborhood's news-viewing habits. Mean is number of news programs viewed in neighborhood each week.
Multiple choice questions based on multiple regression - Find the coefficient of determination for the above model
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