Reference no: EM131009052
1. Side effects. Researchers testing a new medication find that 7% of users have side effects. To how many pa- tients would a doctor expect to prescribe the medication before finding the first one who has side effects?
2. Credit cards. College students are a major target for ad- vertisements for credit cards. At a university, 65% of students surveyed said they had opened a new credit card account within the past year. If that percentage is accurate, how many students would you expect to survey before finding one who had not opened a new account in the past year?
3. Missing pixels. A company that manufactures large LCD screens knows that not all pixels on their screen light, even if they spend great care when making them. In a sheet 6 ft by 10 ft (72 in. by 120 in.) that will be cut into smaller screens, they find an average of 4.7 blank pixels. They be- lieve that the occurrences of blank pixels are independent. Their warranty policy states that they will replace any screen sold that shows more than 2 blank pixels.
a) What is the mean number of blank pixels per square foot?
b) What is the standard deviation of blank pixels per square foot?
c) What is the probability that a 2 ft by 3 ft screen will have at least one defect?
d) What is the probability that a 2 ft by 3 ft screen will be replaced because it has too many defects?
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How fast is the end of the plank sliding along the ground
: A 16 foot plank is leaning on the side of a wall and is being pulled up the wall at a rate of 1/2 ft /?sec by a worker on top of the wall. How fast is the end of the plank sliding along the ground when it is 8 feet from the wall?
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Describe the situation and subsequent behavior
: Describe the situation and subsequent behavior. Discuss possible explanations for the behavior using attribution theory. Describe the reciprocal relationship between behavior and attitudes
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Determine the liquid and vapor molar volumes
: Assuming Raoult's Law to be valid, prepare a Txy diagram for a mixture n-butane (1) and n-hexane (2) at 1 atm. Make the plot in terms of n-butane and be sure to clearly label the bubble line and the dew line. Use the following increments for T:
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Problem regarding the professional tennis
: Serena Williams made a successful first serve 67% of the time in a Wimbledon finals match against her sister Venus. If she continues to serve at the same rate the next time they play and serves 6 times in the first game, determine the following pr..
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Side effects-credit cards
: Researchers testing a new medication find that 7% of users have side effects. To how many pa- tients would a doctor expect to prescribe the medication before finding the first one who has side effects?
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Computer chip manufacturer
: Suppose a computer chip manufacturer rejects 2% of the chips produced because they fail presale testing. Assuming the bad chips are independent, find the probability of each of the following.
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Environmental factors for substance-related disorders
: Describe at least three environmental factors for substance-related disorders. How could an individual living a solid Christian life counteract some of these factors
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Describe what an antisocial personality disorder looks like
: Describe what an antisocial personality disorder looks like. If someone suffers from this type of a disorder can they be held culpable for any immoral behavior they exhibit? Why or why not
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Write boolean expressions and construct the truth table
: Write Boolean expressions and construct the truth table describing the outputs of the circuit depicted by the logic diagram - how the values (in decimal) would be stored in the computer
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