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Use the following information to answer the question. Suppose that a recent poll of American households about pet ownership found that for households with one pet, 39% owned a dog, 33% owned a cat, and 7% owned a bird. Suppose that three households are selected randomly and with replacement.
1.) What is the probability that at least one of the three randomly selected households own a bird? (Round to the nearest hundredth) _______
A) 0.40
B) 0.80
C) 0.60
D) 0.20
Assume that flight times from SAN to ATL are exponentially distributed with a mean of 4.5 hours and a standard deviation of 0.2 hours. Assume that you must fly from SAN to ATL weekly for the lucrative consulting engagement for one year (52 flight..
a product is made up of two subsystems in series. the first subsystem consists of 15 components in series. the second
scores on the act test have a distribution that is approximately normal with mean 21.1 and standard deviation 5.1.what
About what percent of the observations lie between 55 and 65?
a club with 31 members is voting on a proposal. a group of 4 has decided to vote in favor of the proposal while each of
Significant amount of improvement took place? Assume pulse rates are normally distributed. Test using = 0.05. Determine which test statistic applies, and calculate it.
If Puck Chuck wanted to reset the machine so that only 17 in 1000 pucks would have velocities of less than 75 mph, what would the mean output of the machine be set to?
The average shaft size for the E300 electric motor is .55 inch, with a standard deviation of .10 inch. It is normally distributed. What is the probability that a shaft selected at random will be between .55 and .65 inch?
In 1992, the FAA conducted 86,991 pre-employment drug tests on job applicants who were to be engaged in safety and security relatd jobs and found that 1,143
A South American custom candy producer wants to know if the mean daily consumption of regular sugar sweetened candy eaters is less than that of artificial sweetened candy eaters.
Out of a random sample of 500 individuals who are planning to vote in a student council election, 260 plan on voting for Jefferson and 240 plan on voting for Smith.
So construct a multiple regression model for predicting the crime rate based upon various explanatory variables unemployment rate, median income, education level.
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