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Flashcards in Stats And Mechanics Deck (9)
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1

mutually exclusive events

P(A or B) = P(A) + P(B)

2

Independent events

P(A and B) = P(A) x P(B)

3

acceleration

a= (v-u)/t

4

velocity

vv = uu + 2as
v = u + at

5

displacement

s = (u+v/2)t
s = ut + 1/2att

6

P(A or B or both)

P(A) + P(B) - P(A and B)

7

You can model X with a binomial distribution, B(n,p) if:

- there are a fixed number of trials, n
- there are two possible outcomes (success and failure)
- there is a fixed probability of success, p
- the trials are independent of each other

8

What is a critical region?

A critical region is a region of the probability distribution which, if the test statistic falls within it, would cause you to reject the null hypothesis.

9

What is the actual significance level?

The actual significance level of a hypothesis test is the probability of incorrectly rejecting the null hypothesis.