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An archer is given five arrows and is told to shoot at a target until he...
An archer shoots at a target and hits the target with the probability 1 /4. Let...
An archer shoots at a target and hits the target with the probability 1 /4. Let X be a random variable representing the number of shots preceding the first target hit. Find the distribution of X. Calculate its expected value and variance.
Two marksmen shoot at a target simultaneously. Shooter A is known to have a 70% chance...
Two marksmen shoot at a target simultaneously. Shooter A is known to have a 70% chance of hitting the target on any attempt. Person B has 40% accuracy. After the target is hit for the first time, it is revealed that A shot 5 shots while B shot 12. What is the probability that it was A who hit the target? What is the probability that person B hit the target? (Assume that accuracy of the shots remain the same...
Example 4.9: A marksman hits a target 80% of the time. He fires five shots at...
Example 4.9: A marksman hits a target 80% of the time. He fires five shots at the target. What is the probability that exactly 3 shots hit the target?
A) The distribution of exam scores for Statistics is normally distributed with a mean of 78...
A) The distribution of exam scores for Statistics is normally distributed with a mean of 78 and a standard deviation of 5.2. What is the z-score for a raw score of 85? Round to the nearest hundredth. B) An Olympic archer is able to hit the bull’s eye 80% of the time. Assume each shot is independent of the others. She will shoot 6 arrows. Let X denote the number of bull’s eyes she makes. Find the standard deviation of...
Under a given set of conditions, a particular torpedo has a probability of hitting a particular...
Under a given set of conditions, a particular torpedo has a probability of hitting a particular target of 0.3. In this scenario, torpedoes are launched sequentially. That is, the first torpedo is launched. If it hits the target, then the operation is complete. If it misses, another is launched, and then another until one torpedo hits the target. a) What is the average number of torpedoes you will need to shoot until you first hit the target? b) What is...
1. The probability of a man not hitting the target at a shooting range is .6....
1. The probability of a man not hitting the target at a shooting range is .6. A success is defined as hitting the target. If he shoots 12 times, what is the probability that he misses the target just once? 2. The probability of a man not hitting the target at a shooting range is .6. A success is defined as hitting the target. If he shoots 12 times, what is the probability that he does hit the target at...
Can Someone help with problems 4 and 5? Problem 4. A circular-shaped archery target has three...
Can Someone help with problems 4 and 5?
Problem 4. A circular-shaped archery target has three concentric circles painted on it. The in- nermost circle has a radius of 1/V3 feet, the middle has a radius of 1 foot, and the outermost circle has a radius of v3 feet. An arrow hitting in the innermost circle counts for 4 points, between the in nermost and middle circle 3 points, between the middle and outermost circle 2 points, and not hitting...
A basketball player with a poor foul-shot record practices intensively during the off-season. He tells the...
A basketball player with a poor foul-shot record practices intensively during the off-season. He tells the coach that he has raised his proficiency from 45% to 55%. Dubious, the coach asks him to take 10 shots, and is surprised when the player hits 9 out of 10. Complete parts a) through d) below. A) Suppose the player really is no better than beforelong dashstill a 45% shooter. What's the probability he could hit at least 9 of 10 shots anyway?...
2. The probability that a basketball athlete hit the rim of basketball is 0.9. Evaluate the probability distribution of...
2. The probability that a basketball athlete hit the rim of basketball is 0.9. Evaluate the probability distribution of the number of hitting times X if he shoots the basket twice independently. 6. Suppose X has a discrete uniform distribution: P(X = xi--,-1,2, , n. Find the distribution function of X 12.Let X denote the total number insects on a leaf and suppose that X ~ P, (3) (1)What is the probability that there are no insects on the leaf?...
A student will keep guessing answers for a problem until he gets the right answer. Assume...
A student will keep guessing answers for a problem until he gets the right answer. Assume that the correctness of each answer he gives is independent of his other answers. There is a 30% chance that an answer will be correct. Let X be the number of incorrect answers the student guesses. Note that X is a geometric random variable. Determine the probability that the student makes exactly 3 incorrect guesses before getting the right answer. Determine the probability that...
Example 4.9: A marksman hits a target 80% of the time. He fires five shots at the target. What is the probability that exactly 3 shots hit the target?
Can Someone help with problems 4 and 5?
Problem 4. A circular-shaped archery target has three concentric circles painted on it. The in- nermost circle has a radius of 1/V3 feet, the middle has a radius of 1 foot, and the outermost circle has a radius of v3 feet. An arrow hitting in the innermost circle counts for 4 points, between the in nermost and middle circle 3 points, between the middle and outermost circle 2 points, and not hitting...
2. The probability that a basketball athlete hit the rim of basketball is 0.9. Evaluate the probability distribution of the number of hitting times X if he shoots the basket twice independently. 6. Suppose X has a discrete uniform distribution: P(X = xi--,-1,2, , n. Find the distribution function of X 12.Let X denote the total number insects on a leaf and suppose that X ~ P, (3) (1)What is the probability that there are no insects on the leaf?...
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