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Questions by andystanley

1 1 vote
1 answers 1 answer
4.1k
4.1k views
How do I calculate a and z a/2?
1 1 vote
1 answers 1 answer
974
974 views
What is a test statistic in hypothesis testing and how does it relate to the p-value?
1 1 vote
1 answers 1 answer
752
752 views
What is sampling error?
2 2 votes
1 answers 1 answer
778
778 views
What is the Empirical Rule?
3 3 votes
1 answers 1 answer
511
511 views
A gambling machine accepts 5 dollars and generates a random dollar value (x) between 1 and 10.
A gambling machine accepts 5 dollars and generates a random dollar value (x) between 1 and 10.What is the distribution of x?What is the expected value of x?Is it smart to...
2 2 votes
1 answers 1 answer
996
996 views
What is the difference between joint and conditional probability?
2 2 votes
1 answers 1 answer
600
600 views
Two coins are flipped. What is the probability of getting heads twice?
2 2 votes
1 answers 1 answer
706
706 views
What is the difference between qualitative and quantitive data?