An average person catches 5 colds in a year. What is the probability that an individual catches:
a) a single cold in one year?
b) two colds in two months?
An average person catches 5 colds in a year. What is the probability that an individual...
a) Suppose one injured
individual is selected at random. What is the probability that this
person is 75-or-over and
experienced a dog-related injury?
b) Suppose one injured individual is selected at random. What is
the probability that this person is between 55 and
74 years old?
c) Suppose one injured individual is selected at random. What is
the probability that this individual is at least 55
years old (i.e., is 55 years old or older)?
d) Suppose one injured person...
6) The number of times that an individual contract a cold in a given year is a Poisson random variable with parameter λ = 3. Suppose a new wonder drug (based on large quantities of vitamin C) has just been marketed that reduces the Poisson parameter to λ = 2 for 75 percent of the population. For the other 25 percent of the population, the drug has no appreciable effect on colds. If an individual tries the drug for a...
Players A and B each roll a fair 6-sided die. The player with the higher score wins ¤1 from the other player. If both players have equal scores, the game is a draw and no one wins anything. i. Let X denote the winnings of player A from one round of this game. State the probability mass function of X. Calculate the expectation E(X) and variance Var(X). ii. What is the conditional probability that player A rolls , given that...
The probability that an individual owns a tablet computer is 0.4. The probability that a person owns a smart phone given that they own a tablet computer is 0.9. The probability that an individual owns a smart phone given they do not own a tablet computer is 0.6 What is the probability that an individual owns a smart phone? 0.75 0.72 0.50 0.90
1. If a person tosses three coins, what is the probability that there are more Tails than Heads? (a) If a person rolls two dice, what is the probability that the sum of the numbers is equal to 4? (b) Pick at random any two (different) months. What is the probability that both months are summer months? Justify your answer. Show all step. Thank you
8. (5 points) The probability that an individual is left-handed is 0.10. Find the probability that the 5th person you shake hands with today is the first one that is left-handed.
In a lake, Peter catches fishes in an average rate of 3 fishes per hour. (Assume Peter always catches one fish at a time and the events of catching each fish are independent.) (a) [10 points) At 2:00PM, if it's known that Peter caught the previous fish at 1:50PM, what is the probability that he will catch the next fish before 2:30PM? (b) [10 points) Assume Peter starts catching fish at 9:00AM, what is the probability that he will catch...
The average person is exposed to 6.2mSv of background radiation per year. A CT scan of the head exposes a person to 1.4 mSv. What is the equivalent amount of time in months that a person would need to be exposed to background radiation to match the radiation exposure of one CT scan?
1.) Determine whether the following individual events are independent or dependent. Then find the probability of the combined event. Randomly selecting a four-person committee consisting entirely of Americans from a pool of 19 Americans and 8 Canadians. 2.) Use the theoretical method to determine the probability of the given outcome or event. Assume that the die is fair. Rolling a single six-sided die and getting a low number (1, 2 or 3). -The probability rolling a single six-sided die and...
The probability that a person will have 0, 1, or 2 dental checkups per year is 0.3, 0.6, and 0.1, respectively. If seven people are picked at random, what is the probability that two will have no checkups, four will have one checkup, and one will have two checkups in the next year