stats 42

Question 1

STATS 4-2

event

Answer 1

any collection of results or outcomes of a procedure

Question 2

STATS 4-2

simple event

Answer 2

an outcome or an event that cannot be further broken down into simpler components

Question 3

STATS 4-2

sample space

Answer 3

for a procedure consists of all possible simple events. that is, the sample space consists of all outcomes that cannot be broken down any further

Question 4

STATS 4-2

P

Answer 4

probability

Question 5

STATS 4-2

A,B, & C

Answer 5

specific events

Question 6

STATS 4-2

P(A)

Answer 6

the probability of event A occurring

Question 7

STATS 4-2

Relative frequency approximation of probability

Answer 7

P(A)= number of times A occurred/number of times procedure was repeated.

Question 8

STATS 4-2

Classical Approach to probability (requires equally likely outcomes)

Answer 8

P(A) = number of ways A occur/number of different simple events = s/n

Question 9

STATS 4-2

For any event A the probability of A is

Answer 9

between 0 & 1 inclusive

0≤P(A)≤1

Question 10

STATS 4-2

law of large numbers

Answer 10

As a procedure is repeated again and again, the relative frequency probability of an event tends to approach the actual probability

Question 11

STATS 4-2

complement

Answer 11

the complement of event A denoted by A bar, consists of all outcomes in which A does not occur

Question 12

STATS 4-2

An event is unlikely

Answer 12

if it’s probability is very small, such as 0.05 or less

Question 13

STATS 4-2

Actual odds against

Answer 13

Event A occurring are the ratio P(Ā)/P(A), usually expressed in the form of a:b, (or “a to b”), where a and b are integers having no common factors.

Question 14

STATS 4-2

Actual Odds in favor

Answer 14

The ratio P(A)/P(Ā). Reciprocal of actual odds against that event. b:a