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1. Suppose a random sample of size 16 is going to be taken from a population with variance of 5.
a. What is (approximately) the probability that the sample variance Sx2 will be less than 3?
b. There is a 10% chance the sample variance Sx2 will be greater than ___.
2. Suppose there are two types of Penn State Sports fans: Rabid (R), and Casual (R'). These fans either view a big game Live (L) or at Home (L'). Suppose 15% of Penn State fans are both Casual and watch the games at Home. If a fan watches at Home, the probability that he/she is Casual is 80%. Finally, suppose 30% of fans are Rabid.
a. What is the probability of any fan watching the game at Home?
b. If a fan watches the game Live, what is the probability that they are Rabid?
3. Suppose there are two events, A and B. A and B are mutually exclusive. P(A)=.4, P(B)=.5. What is P(A'|B)?
Letting x denote the length of one side of the base, find a function in the variable x giving the cost (in dollars) of constructing the box.
What percent of the cruises will have 1,970 passengers or more? What percent of the cruises will have 1,600 or fewer passengers? How many passengers are on the cruises with the fewest 25 percent of passengers?
A machine produces widgets at a defective rate of 10%. A sample of 5 widgets is taken, What is the probability that less than 2 of them are defective?
use eulers method to calculate the first three approximations to the given initial value problem.use eulers method to
The Atlanta Falcons currently have won 25% of their games.
Which of the expressions below are equal to the one in the box? Check all that apply.
On Friday, a local hamburger shop sold a combined total of 416 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Friday?
Consider the data points (1,7),(2,5),(3,2), and (4,1). Find the straight line that provides the best least-squares fit to these data. the equation of the least-squares line is y=?
What is the planning value for the population standard deviation? How large a sample should be taken if the desired margin of error is.
What's the probability the newspaper's sample will lead them to predict defeat?
Determine the nature of the solutions of the equation.
Important information about Probability and combinations. Assume you have five cards are chosen from a standard deck of 52 playings cards. How many hands contain four aces?
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