Probability and Sampling
This measure represents the average value of data set
The mean
this value measures the probability of observing results like the sample data , assuming that the null hypothesis is true .
P- value
Graph used to visualize the relationship between two numerical variables in a dataset
A scatterplot
What is the main step?
Null and Alternative Hypothesis
This type of error occurs if you mistakenly reject a null hypothesis that is actually true.
Type I error
when two events cannot occur at the same time , they are called this ?
is mutually exclusive events
Represents the slope.
The m
what is this formula p(A and B) =p(A)x (B) ?
multiplication rule
this measure describes the spread between the highest and lowest values .
is the range
This test compares the means of two groups.
The t-test
The probability of an event happening given another event already occurred.
conditional probability