Lect1_2008
... outcomes (such as "Getting an even number" on the die, or "Getting 3 heads in 5 consecutive experiments with a coin") we need to make a reasonable guess about the probabilities of the elementary events (getting H or T for a coin , or one of six faces for a die). For instance, we can assume (as we us ...
... outcomes (such as "Getting an even number" on the die, or "Getting 3 heads in 5 consecutive experiments with a coin") we need to make a reasonable guess about the probabilities of the elementary events (getting H or T for a coin , or one of six faces for a die). For instance, we can assume (as we us ...
Statistics Chapter 5
... Definitions Event - any collection of results or outcomes from some procedure Simple event - any outcome or event that cannot be broken down into simpler components Compound event – an event made up of two or more other events Sample space - all possible simple events ...
... Definitions Event - any collection of results or outcomes from some procedure Simple event - any outcome or event that cannot be broken down into simpler components Compound event – an event made up of two or more other events Sample space - all possible simple events ...
Probability Problems III
... h) Are B and C independent? Why? No, The P(C) = 2/9 is not equal to P(C|B)= 4/9. So, C is not independent of B 3) Joyce has a 0.5 chance of getting a federal grant for college, and a 1/3 chance of getting a state grant. If the federal and state grants have no effect on one another. What is th ...
... h) Are B and C independent? Why? No, The P(C) = 2/9 is not equal to P(C|B)= 4/9. So, C is not independent of B 3) Joyce has a 0.5 chance of getting a federal grant for college, and a 1/3 chance of getting a state grant. If the federal and state grants have no effect on one another. What is th ...
Probability and Counting - University of Louisville Department of
... in each trial one and only one of the elements of S can occur as outcome. The elements of S are called simple events or simple outcomes. An event E is any subset of S, including the empty set and S itself. E is a simple event if it contains exactly one element of S, it is a compound event if it cont ...
... in each trial one and only one of the elements of S can occur as outcome. The elements of S are called simple events or simple outcomes. An event E is any subset of S, including the empty set and S itself. E is a simple event if it contains exactly one element of S, it is a compound event if it cont ...
probability - wellswaymaths
... CONDITIONAL PROBABILITY Give your answers correct to 3 significant figures. 1. One box contains 50 red pens and 25 blue pens. A second box contains 35 red pens and 40 blue pens. One box is chosen at random and then one pen is chosen at random from that box. If it is a red pen, what is the probabili ...
... CONDITIONAL PROBABILITY Give your answers correct to 3 significant figures. 1. One box contains 50 red pens and 25 blue pens. A second box contains 35 red pens and 40 blue pens. One box is chosen at random and then one pen is chosen at random from that box. If it is a red pen, what is the probabili ...
Some Practice Problems from Exam 1, Spring 2014 (Questions 1-5)
... D) 0.65 E) 0.74 (31) Assuming the null hypothesis is true, what is standard error of the estimate of p? A) 0.0253 B) 0.0275 C) 0.0289 D) 0.0500 E) 0.0548 (32) Assuming the null hypothesis is true, what is the value of the test statistics? A) 3.6 B) 3.0 C) 3.3 D) -3.0 E) -3.3 (33) Assuming the null h ...
... D) 0.65 E) 0.74 (31) Assuming the null hypothesis is true, what is standard error of the estimate of p? A) 0.0253 B) 0.0275 C) 0.0289 D) 0.0500 E) 0.0548 (32) Assuming the null hypothesis is true, what is the value of the test statistics? A) 3.6 B) 3.0 C) 3.3 D) -3.0 E) -3.3 (33) Assuming the null h ...
A ∩ B
... EXAMPLE 4: According to the National Center for Health Statistics (http://www.cdc.gov/nchs/data/nhis/earlyrelease/wireless201306.pdf), in December 2012, 60% of U.S. households had a traditional landline telephone, 89% of households had cell phones, and 51% had both. Suppose we randomly selected a ho ...
... EXAMPLE 4: According to the National Center for Health Statistics (http://www.cdc.gov/nchs/data/nhis/earlyrelease/wireless201306.pdf), in December 2012, 60% of U.S. households had a traditional landline telephone, 89% of households had cell phones, and 51% had both. Suppose we randomly selected a ho ...
Exam 1 - MIT OpenCourseWare
... No books or calculators. You may have one 4×6 notecard with any information you like on it. 6 problems, 8 pages Use the back side of each page if you need more space. Simplifying expressions: You don’t need to simplify complicated expressions. For ex ...
... No books or calculators. You may have one 4×6 notecard with any information you like on it. 6 problems, 8 pages Use the back side of each page if you need more space. Simplifying expressions: You don’t need to simplify complicated expressions. For ex ...
Example - Cengage Learning
... services: A, B, and C. The probability of selecting service A is 1/2, of selecting B is 3/10, and of selecting C is 1/5. Suppose the event T is “on time delivery.” P(T|A) = 9/10, P(T|B) = 7/10, and P(T|C) = 4/5. A service is randomly selected to deliver a package overnight. Construct a tree diagram ...
... services: A, B, and C. The probability of selecting service A is 1/2, of selecting B is 3/10, and of selecting C is 1/5. Suppose the event T is “on time delivery.” P(T|A) = 9/10, P(T|B) = 7/10, and P(T|C) = 4/5. A service is randomly selected to deliver a package overnight. Construct a tree diagram ...
Chapter 5 Probability
... The probability that a randomly selected murder victim was male is 0.7515. The probability that a randomly selected murder victim was less than 18 years old given that he was male was 0.1020. What is the probability that a randomly selected murder victim is male and is less than 18 years old? Data b ...
... The probability that a randomly selected murder victim was male is 0.7515. The probability that a randomly selected murder victim was less than 18 years old given that he was male was 0.1020. What is the probability that a randomly selected murder victim is male and is less than 18 years old? Data b ...
Combinatorics
... – An ordered arrangement of n elements from a set – An r-permutation is an ordered arrangement of r elements taken from a set of n elements – The number of r-permutations of n items P(n,r) ...
... – An ordered arrangement of n elements from a set – An r-permutation is an ordered arrangement of r elements taken from a set of n elements – The number of r-permutations of n items P(n,r) ...
Quiz 4 Answer Key
... minutes and a standard deviation of four minutes. What proportion of the drive times will take between 36.8 and 38 minutes? (2 pts) ...
... minutes and a standard deviation of four minutes. What proportion of the drive times will take between 36.8 and 38 minutes? (2 pts) ...