Determine the probability of getting a compound event
Make a sample space of possible outcomes for the following: flipping one coin and rolling octagonal die. Determine the probability of getting a compound event of heads and rolling a 7.
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A salesman should choose 2 of the first component and 3 of the second to take on a sales call. How many different sets of components can the salesman take?
For the normal distribution curve with mean of 6 and a standard deviation of 5, which of the following ranges of the variable will define an area under the curve corresponding to a probability of approximately 34%?
Create a sample space for tossing a coin four times. Determine the probability of getting a simple event of three heads and one tail.
A retail men's clothing store owner buys from the three companies: X, Y and Z. The most recent purchases are shown here.
From the sample of ten full-time staff, selected from education department at your school, it is found that their mean salary is $50,340. Suppose the standard deviation of the population is given as $15,320. Find the 95% confidence interval for th
A reporter bought hamburgers at randomly chosen stores of two different restaurant chains, and had number of Calories in each hamburger measured.
Many elementary school students in school district currently have ear infections. A random sample of children in two different schools found that 13 of 48 at one school and 20 of 40 at the other have ear infections.
Doctors nationally believe that 78% of a certain type of operation are successful. In a particular hospital, 62 of these operations were observed and 52 of them were successful. At = .05, is this hospital's success rate different from the national
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