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Business Statistics Test ?s
Business Statistics Test ?s
24
Other
Undergraduate 2
03/17/2009

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Term
When constructing a frequency distribution...
Definition
the number of classes should be equal to the number of data values divided by 10
Term
Descriptive statistics consist of procedures used to....
Definition
collect, summarize the information and describe the characteristics of a set of data
Term
The requirement that classes in any frequency distribution must be mutually exclusive and collectively exhaustive implies that every element in the data set must fall into
Definition
one and only one class
Term
Measures of central tendency are...
Definition
descriptive measures of the center of a set of data
Term
Another name for the variance..
Definition
the average squared error
Term
Measure of shoe sizes are
Definition
interval scale data
Term
When a distribution is "symmetrical," the smallest value of the following three measures....
Definition

are all equal; median=mode=mean

Term
The sum of frequencies for all classes will always equal...
Definition
n or N
Term
The simple probability is also called
Definition
a marginal probability
Term
The union of two events A and B is written as:
Definition
(A U B), (A union B), (A or B)
Term
A sampling carried out without replacement would describe a series of...
Definition
dependent events
Term
If two events are collectively exhaustive, the probability of their intersection is equal to ...
Definition
1.00
Term

Males and Females are a pair of events that are both...

Definition
mutually exclusive and collectively exhaustive
Term
Events A and B are independent if:
Definition
P( A ¦ B) is equal to P (A)
Term
A random experiment is a process that when performed...
Definition
results in one and only one of many observations
Term
If two events are mutually exclusive and collectively exhaustive, the probability that one or the other event occurs is...
Definition
1.00
Term
Population
Definition
a collection of all items under consideration
Term
Parameters
Definition
are descriptors of a population
Term
Parameters are represented by what type of symbols?
Definition
greek
Term

Two properties of parameters are:

Definition
constant and unknown
Term
________ is a subset of a population
Definition
sample
Term
statistics
Definition
descriptors of a sample
Term
Statistics are represented by...
Definition
english symbols
Term
Two properties for a sample are:
Definition
known, variables
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