Mathematical content Flashcards
1
Q
what does > mean
A
greater than
2
Q
what does < mean
A
less than
3
Q
what does»_space; mean
A
much greater than
4
Q
what does «_space;mean
A
much less than
5
Q
what does ∝ mean
A
proportional to
6
Q
what does ≈ mean
A
weak approximation
7
Q
how do you calculate a percentage
A
score/total possible score x 100
8
Q
how do you convert a percentage to a decimal
A
remove the % and move decimal place two places to the left
9
Q
how do you convert a decimal to a fraction
A
- work out the number of decimal places in your number- if there are two divide by 100 and if there are three divide by 1000
- sometimes you can reduce the fraction by finding the biggest number that divides evenly into both parts of the fraction
10
Q
what is the accepted level of probability in psychology
A
5%
11
Q
how is the accepted level of probability written
A
p=0.05
12
Q
what does a p=0.005 probability mean
A
there is a 5% probability that the results occurred by chance and a 95% probability that the results were due to a change in the IV
