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Questions by andystanley

1 1 vote
1 answers 1 answer
4.0k
4.0k views
How do I calculate a and z a/2?
1 1 vote
1 answers 1 answer
810
810 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
625
625 views
What is sampling error?
2 2 votes
1 answers 1 answer
648
648 views
What is the Empirical Rule?
3 3 votes
1 answers 1 answer
405
405 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
883
883 views
What is the difference between joint and conditional probability?
2 2 votes
1 answers 1 answer
491
491 views
Two coins are flipped. What is the probability of getting heads twice?
2 2 votes
1 answers 1 answer
591
591 views
What is the difference between qualitative and quantitive data?