Exam (elaborations)
STAT 231 Exam 2 (Ch. 5-7) questions 2025 with answers.
- Course
- Stats 231
- Institution
- Stanford University
STAT 231 Exam 2 (Ch. 5-7) questions 2025 with answers.
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STAT 231 Exam 2 (Ch. 5-7) questions 2025 withanswers
if, under a given assumption, the probability of a particular observed event is extremely
small, we conclude that - ** VERIFIED ANSWERS🔰 ✔✔the assumption is probably not
correct
any collection of results or outcomes of a procedure - ** VERIFIED ANSWERS🔰 ✔✔event
an outcome or event that cannot be further broken down into simpler componenets - **
VERIFIED ANSWERS🔰 ✔✔simple event
for a procedure consisting of all possible simple events; that is, the sample space consists of
all outcomes that cannot be broken down any further - ** VERIFIED ANSWERS🔰
✔✔sample space
denotes probability - ** VERIFIED ANSWERS🔰 ✔✔P
denotes specific events - ** VERIFIED ANSWERS🔰 ✔✔A, B, and C
denotes the probability of event A occuring - ** VERIFIED ANSWERS🔰 ✔✔P(A)
for subjective probabilities, the probability of event A is estimated by using - ** VERIFIED
ANSWERS🔰 ✔✔knowledge of the relevant circumstances
, as a procedure is repeated again and again, the relative frequency probability of an event
tends to approach the actual probability - ** VERIFIED ANSWERS🔰 ✔✔law of large
numbers
always express a probability as a fraction or decimal number between - ** VERIFIED
ANSWERS🔰 ✔✔0 and 1
probability of an impossible event is __ - ** VERIFIED ANSWERS🔰 ✔✔0
probability of an event that is certain to occur is - ** VERIFIED ANSWERS🔰 ✔✔1
for any event A, the probability of A is between - ** VERIFIED ANSWERS🔰 ✔✔between 0
and 1 inclusive
the complement of A, denoted by A with a line over it, consists of all outcomes in which the
event A ______ - ** VERIFIED ANSWERS🔰 ✔✔does not occur
when expressing the value of probability, how do you round off/present your answer? - **
VERIFIED ANSWERS🔰 ✔✔give the exact fraction or decimal, or round final decimal off
to three significant digits
any event combining 2 or more simple events - ** VERIFIED ANSWERS🔰 ✔✔compound
event
a description that gives the probability for each value of a variable, often expressed in the
format of a graph, table, or formula - ** VERIFIED ANSWERS🔰 ✔✔probability
distribution
a variable that is typically represented by x, has a single numerical value, determined by
chance, for each outcome of a procedure - ** VERIFIED ANSWERS🔰 ✔✔random variable
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