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1. Betty plans to have two children but doesn't know if they will be boy-boy, girl-girl, or boy-girl. What is the probability that she will have two girls?
2. The length of an instant message conversation is normally distributed with a mean of 5 minutes and a standard deviation of .7 minutes. What is the probability that a conversation lasts longer than 6 minutes?
3. Pam is looking for a new car. She has test-driven two cars but can only purchase one. The probability that she will purchase car A is 0.46, and the probability that she will purchase car B is 0.34. What is the probability that she will not purchase either car A or car B?
4. Sam claims that his cat can do single-digit multiplication. He shows the cat 10 cards with simple multiplication problems that are either correct or incorrect. The cat correctly identifies the correctness of the card 7 times out of 10. If the cat were simply guessing, how many would the cat be expected to get correct?
two minor league baseball players got a total of 378 hits. washington had 16 more hits than sanchez. find the number of hits for each player.
At President Bush's inaugration in 2005,the newspaper headlines stated there were about 400,00 people in attendance. what is the largest number and smallest number of people that could have been there
Show that this new curve is again a B-spline.
Assume that payments are due at the end of each payment period.
Would someone be able to explain to me how we would find antichains and chains of a powerset? For example, if we had the power set of 4 - P([4]) then how would we derive the antichains, and symmetric chains?
What sort of statistics or probabilities would you need to see to convince you that this "unhealthy substance bump" in insurance rates was justified
What is the nature of the effects of the factors studied in this experiment? What strategy would you use to reduce invoice errors, given the results of this experiment?
Pretend you are a specialist in "Math Anxiety Disorder" and you have a group of students who have signed up for therapy because they are starting a Math class in one week and they have not taken Math in 10 years!
a bus traveled at an average rate of 40 mile per hour and then reduced its average rate to 30 miles per hour for the rest of the trip. If 204-mile trip took 6 hours, determine how long the bus traveled at each rate.
Research a topic related to career development. Prepare a document that would be useful advice for your classmates.
Find a linear demand equation that shows the number of people who will attend the game if the price of a ticket is p dollars. Find the revenue per game as a function of the price.
compute a 90% confidence interval for the mean serum cholesterol level of teenage males in this city. Assume that the sample was taken from a normal distribution. Round your confidence limits to 2 decimal places.
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