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Solve the following probability tasks. Show your calculations
1. A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is:
2. One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card (Jack, Queen and King only)?
3. A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
q1 both undergraduates and postgraduates can use the university cafeteria. each diner can choose between buying a meal
A quality control analyst wants to examine thermometers that give readings in the bottom 4%. Find the reading that separates the bottom 4% from the others.
What is the probability of randomly selecting a sample of 30 scores which has a mean attention span equal to or greater than 17 minutes.
Examine the Levine's test for equality of variance. State the null (Ho) and alternate (Ha) hypotheses for Levine's test. Using the Levine's test results, circle the significance for the test for that hypothesis, and make decision on either rejecting..
Consequently, there are far fewer performance-based contracts than expected. In your view, what is the biggest challenge in preparing a performance-based work statement and what can be done to overcome that challenge?
suppose that 80 of the accounts are in error. What is the probability that the auditor will find that the sample proportion (P) of the accounts in error will exceedd 0.10?
Investigate the comparative pros and cons of the mean and the median. Find examples where the mean is more appropriate than the median and vice-versa. Discuss the locations of the mean, median and mode for a normal, left-skewed and right-skewed di..
a random sample of 16 statistics examinations from a large population was taken. the average score in the sample was
Generate a 95% confidence interval for the true mean total cholesterol levels in children.
in a survey of undergraduate library usage it was found that 78 of seniors 65 of juniors 41 of sophomores and 21 of
Calculate a standard error for the sample mean production rate for the new method and what is the standard error of the $1600 estimate?
Consumers reported on average 1.7 problems per vehicle with a popular make and model of a 2006 car. We randomly select a vehicle of the same make, model, and year.
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