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Question: The U.S. Energy Department states that 60% of all U.S. households have ceiling fans. In addition, 29% of all U.S. households have an outdoor grill. Suppose 13% of all U.S. households have both a ceiling fan and an outdoor grill. A U.S. household is randomly selected.
a. What is the probability that the household has a ceiling fan or an outdoor grill?
b. What is the probability that the household has neither a ceiling fan nor an outdoor grill?
c. What is the probability that the household does not have a ceiling fan and does have an outdoor grill?
d. What is the probability that the household does have a ceiling fan and does not have an outdoor grill?
What is the probability that sara will die in her 60th year? using this probability and the $50,000 death benefits, what is the expected loss?
The bar chart shows the relative frequencies of winners of the Wimbledon women's singles tennis title for 1976 - 1995. How many titles did Graf and Navratilova win?
Given the following revenue and cost function for a business firm, calculate the break-even quantity, total revenue, total cost and total profit at break-even level of production.
Determine 95% confidence interval evaluate for average number of years served by all Supreme Court justices?
Suppose the winnings of gamblers at Las Vegas are normally distributed with mean µ = -300 (the typical person loses $300), and standard deviation σ = 100. Determine the probability that a gambler does not lose any money.
The independent variable observed, and y, the independent variable predicted) and are assumed to be normally distributed with mean = 0 and 2 variance how good is the linear fit?
to obtain information on the corrosion-resistance properties of a certain type of steel conduit 45 specimens are buried
Calculate the percentage of eggs in each group that hatched. The researchers anticipated that eggs would not hatch in the cold environment.
A random sample of 10 shafts has an average diameter of 0.2545 inches. a) Construct a 99% confidence interval of the true mean
you were interested in how long the average psychology major at your college studies per night so you asked 10
A chain of fast-food restaurants offers an instant-winner promotion. Drink cups and packages of French fries come with peel-off coupons. According to the promotion, 1 in 20 packages is a winner.
a researcher reported a correlation of 1.25 between an iq test and grades in epy 6214. which one of the following
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