Defintion of Correlation

A measure of linear association between two ordered lists.

difference between the lowest and highest values in a collection of data

the group being studied in a problem

What is Cumulative Probability Distribution Function (cdf)?

the probabilities that a random variable is less than or equal to X

the middle number in a set of numerical data

Definition of statistics

branch of math that deals with the collection analysis, and interpretation

an interval, calculated from a sample mean

observes individuals and measures variables of interest but won't influence

factual information recorded and used for the purpose of analysis

What is a sample survey

a survey of some group of individuals by studying only some of its members

What is the bell curve?

(Normal Distribution) displays mean, median, mode of the data you collect

Definition of population

is the entire group of individuals about which we want information

The average refers to the mean of data.

if 2 independent samples have proof of the average or mean being different

the line that best represents the trend of the points in a scatter plot

a variable in which the value is unknown

What is the Alternative Hypothesis?

a theory that contradicts a null hypothesis

part of the population from which collected information

What is Critical Value?

the value of the test statistic which we would reject the null hypothesis

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Statistics definitions

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1
Defintion of Correlation
A relationship between two or more ordered lists that are not linear
A measure of linear association between two ordered lists.
A measure of linear association between two or more ordered lists
Correlation Coefficient
2
Range
difference between the lowest and highest values in a collection of data
anywhere from 0-100
total between the lowest and highest values in a collection of data
the value from the lowest number to highest number
3
Population
a single person being studied in the problem
the part of the group in the problem
the group being studied in a problem
a group of people just trying to mingle
4
What is Cumulative Probability Distribution Function (cdf)?
distribution of the X variable
the probabillities that a random variable is greater than X
a random variable that does not have anything to do with an X variable
the probabilities that a random variable is less than or equal to X
5
Median
the average of a set of data
the smallest number
the middle number in a set of numerical data
the number closest to 100
6
Definition of statistics
the basics of algebra and geometry combined
branch of science that shows you how to form a hypothesis and collect data
when you do a study and you find data
branch of math that deals with the collection analysis, and interpretation
7
Confidence interval
an interval, calculated from a sample mean
an interval calulated from the standard devation
the interval of the population and mean
a sample calculated from the whole population
8
Observational study
observes individuals and measures variables of interest but won't influence
a science expiriment
a study you look at
a test to observe that will calculate the sample mean
9
Definition of data
numbers you but on a scatter plot to know how accurate the conclusion is
factual information recorded and used for the purpose of analysis
numbers collected from a study that are not true to the survey
a series of numbers collected that are not extremely accurate
10
What is a sample survey
a survey of some group of individuals by studying only some of its members
a survey done on a large population of people studying all of the members
a survey done that will include the whole population
a survey done with a person named sample
11
What is the bell curve?
displays the average of the data you collect
displays the mean, median, and mode in an oval shape
a straight line graph
(Normal Distribution) displays mean, median, mode of the data you collect
12
Definition of population
the amount of people in the world
half of the people included in the study
is the entire group of individuals about which we want information
a small portion of the population
13
Average
The average of one data problem
The average is all the data in a given problem
The average refers to the mean of data.
The least amount of data
14
independent t-test
a test to see if 2 independent samples are similar
if 2 independent samples have proof of the average or mean being different
a test to see if 2 independent samples are different with no proof given
a test to see if 2 independent samples are related
15
line-of-best-fit
the line that doesnt touch any of the points on the scatter plot
the scatter plot that doesnt have a line
the line that best represents the trend of the points in a scatter plot
the line that is the straightest
16
Random Variable
a variable in which the value is unknown
a variable in which the value doesnt matter
a variable in which the value is known
a variable in which the value is always 1
17
What is the Alternative Hypothesis?
an inference
a theory that contradicts a null hypothesis
the thought made before an answer is given
a theory that doesnt contradict a null hypothesis
18
What is a sample
the small testers of food you get at the grocery store
the population as a whole
none of the population
part of the population from which collected information
19
What is Critical Value?
when the set of all numbers are positive
the value of the test statistic which we would reject the null hypothesis
the value of the test statistic which we would not reject null hypothesis
The overall value of a test statistic
20
Correlation Coefficient
anything above +1
-1 to +1
0 to +1
-1 to 0

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