isds exam 2
= 0.51 =0.17+0.17+0.17
A sample space S yields six equally likely events, K, L, M, N, O, and P c. find P(K U M U O)
= 0.17 (1.00/6)
A sample space S yields six equally likely events, K, L, M, N, O, and P. a. find P(N)
=0.83 =1.00-0.17
A sample space S yields six equally likely events, K, L, M, N, O, and P. b. find P(Lc) - the complement of L
experiment
A trial, or process, that produces several possible outcomes is referred to as a(n)
P({win}) = 0.8, P({loss}) = 0.2 PROB ADDS TO 1 AND CAN NOT BE NEGATIVE
Assume the sample space S = {win, loss}. Which numbers define valid probabilities?
2 categorical variables
Contingency tables are useful to analyze
two categorical variables
Contingency tables are useful to analyze
complement
For any given event, the probability of that event and the probability of the ___________________ of the event must sum to 1
0
For mutually exclusive events A and B, the joint probability is
P(A∩B) = P(A|B) × P(B).
For two events A and B, the multiplication rule is...
all the cards in the deck
If an experiment is selecting a card from a deck of cards, then the sample space is
independent
If two events do not influence each other, then the events are ______ events.
total number of outcomes in the sample space.
In order to convert a contingency table into a joint probability table, the frequency of each cell is divided by the
contain all outcomes in an experiment and do not share common outcomes.
Mutually exclusive and exhaustive events
dependent
On any given day, he probability that Murali goes to the coffee shop is 0.70. The probability that Connie goes to the coffee shop is 0.40. If Murali goes to the coffee shop, the probability that Connie goes to the coffee shop is 0.48. The events "Murali goes to the coffee shop" and "Connie goes to the coffee shop" are
multiplication rule for probabilities
P(A ∩ B) = P(A|B)P(B) is referred to as the
Joint Probability
P(A ∩ B) is known as a
0 to 1
Probability values range from...
the union of two events
The addition rule is used to calculate...
P(AC) = 1 - P(A)
The complement rule with respect to event A is...
B
The conditional probability of A given B is calculated by dividing the probability of intersection of A and B by the probability of
one
The sum of the probabilities of any list of mutually exclusive and exhaustive events equals
all outcomes in A or B.
The union of two events A and B, denoted A∪B, contains
event B
Using the multiplication rule, the probability that event A and event B both occur is computed by multiplying the conditional probability of event A given event B by the probability of...
The probability that Lisa purchases groceries, given that Neil has already purchased groceries.
Which of the following is an example of a conditional probability?
impossible
With probability, a value of zero indicates an________________ event
sample space
a ________________________ of an experiment contains all possible outcomes of the experiment
event
a subset of the sample space is called an
receiving anything other than an a
f an event is getting a letter grade of A in your statistics class, what is the complement of receiving an A?
intersection
in a contingency table, joint probabilities represent the _________________ of two events
exhaustive
its that include all outcomes in the sample space are known as exhaustive events
classical probability
what probability is based on logical analysis and not observation or personal judgement?
subjective probability
what probability is based on personal judegment?
empirical probability
what type of probability is based on observation? ex: A political reporter announces that there is a 46% chance that the next person to come out of the conference room will be a Republican, since there are 80 Republicans and 93 Democrats in the room.
definite
with probability a value of one indicates a definite event
Determine a historical fact such as the name of the U.S. President in the year 1856.
which of the following is NOT an example of an experiment?