Quiz 2

Question 1

Define percentile

Answer 1

Measures of location (P sub 1,2,3,etc) which divide a set of data into 100 groups with about 1% of the values in each group

Ex) Psub50=50% of the data above and below it

Question 2

Percentile of value x =

Answer 2

(# of values less than x)/(total number of values)

Question 3

L=

Answer 3

(k/100)(n)

Question 4

Define event

Answer 4

Any collection of results or outcomes of a procedure

Question 5

Define simple event

Answer 5

And out come or event that cannot be further broken down into any simple components

Question 6

Define sample space

Answer 6

All possible simple events

Question 7

Define the law of large numbers

Answer 7

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

Question 8

What is an unlikely event

Answer 8

An event that has a small probability (.05 or less$

Question 9

What is an unusual event

Answer 9

Extreme result (far above or below typical values)

Question 10

What is a compound event

Answer 10

Any event combining two or more simple events

Question 11

When are events disjoint

Answer 11

If they cannot occur at the same time