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Flashcards in Quicksheets Deck (83)
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1

Mean is the ______ of the data points, and is heavily impacted by o______.

average, outliers

2

Median is the ______ of the data set, and is not affected by ______.

central value, outliers

3

Mode is the _____ of the data set.

most common data point(s)

4

Standard deviation is a measure of how ______ values are from the _____.

spread out, mean

5

For independent events, P(A and B) = __ x __

P(A) x P(B)

6

For independent events, P(A or B) =

P(A) + P(B) - [P(A) x P(B)]

7

null hypothesis states ________

hypothesis that there is no relationship between measured phenomena

8

p-value is the probability that the results were obtained _______, given that _______

the probability that the results were obtained by change, given that the null hypothesis is true

9

Confidence interval is the range of values ___________, within a given level of _______

believed to contain the true value, probability

10

Hawthorne effect: behavior is modified in response to the awareness of ______

being observed

11

Confounder: a variable that relates to _______ is ______.

the independent and dependent variables, overlooked

12

To estimate the product, if you round one number up, ___

round the other down

13

To estimate the quotient, if you round one number up,

round the other up

14

When you take the sq root of a number to an exponent, _____ the exponent

divide the exponent by two (it is to the power of 1/2)

15

7^2, 8^2, 9^2, 10^2

49, 64, 81, 100

16

11^2, 12^2, 13^2, 14^2, 15^2

121, 144, 169, 196, 225

17

16^2, 17^2

256, 289

18

18^2, 19^2

324, 361

19

log (AB) =

logA + logB

20

log (A/B) =

logA - logB

21

logA^B =

BlogA

22

log(1/A) =

-logA

23

logx = ____/____

lnx/2.303

24

log(n x 10^m) ~

m + 0.n

25

Triangle: 1,2,rad3 has angles

rad3 opposite 60
2 opposite 90
1 opposite 30

26

45, 45, 90 has sides

1, 1, rad 2

27

radical 3 is about

1.7

28

radical 2 is about

1.4

29

The energy of a photon is equal to Planck' constant times ____, and and equivalent statement is ___

=hf
=hc/lambda

30

The maximum kinetic energy of an ejected electron is equal to _____ minus ______

hf - W