# chapter 4

Studied by 10 people
3.0(1)
get a hint
hint

a casual relationship is where

1 / 17

## Tags and Description

### 18 Terms

1

a casual relationship is where

there is a reason why something happens

New cards
2

example of a casual relationship is

as the age of something increases its value decreases

New cards
3

with lines of best fit, if you have to plot it through the mean point, it means

find the mean of x and the mean of y and plot that point

New cards
4

interpolation is

within the data and therefore is reliable

New cards
5

extrapolation is

outside the data set and is therefore less reliable than interpolation

New cards
6

line of best fit is also known as

the regression line

New cards
7

equation of a line is

y=mx+c

New cards
8

every time that x increases by 1 the y increases/decreases by m

New cards
9

the y intercept is

the initial thing as it is where x is zero

New cards
10

spearman’s rank tests

how strong or weak the correlation between two things are

New cards
11

the equation for spearmans rank is

New cards
12

in spearman’s, a perfect positive or negative correlation is

1 or -1

New cards
13

in spearmans, a strong positive or negative correlation is

0.8 or above, -0.8 or below

New cards
14

in spearman’s a weak positive or negative correlation is

0.4 or above, -0.4 or below

New cards
15

in spearman’s you have to rank both x and y

the same way

New cards
16

spearman’s rank is represented as

rs

New cards
17

spearman’s rank is designed for

non-linear correlation

New cards
18

what is more suitable for linear correlation

pearsons product moment correlation

New cards

## Explore top notes

Note
Studied by 8 people
Updated ... ago
5.0 Stars(1)
Note
Studied by 72 people
Updated ... ago
5.0 Stars(1)
Note
Studied by 3 people
Updated ... ago
5.0 Stars(1)
Note
Studied by 12 people
Updated ... ago
4.0 Stars(1)
Note
Studied by 22 people
Updated ... ago
5.0 Stars(2)
Note
Studied by 14 people
Updated ... ago
5.0 Stars(3)
Note
Studied by 3 people
Updated ... ago
5.0 Stars(1)
Note
Studied by 16 people
Updated ... ago
5.0 Stars(1)

## Explore top flashcards

Flashcard183 terms
Studied by 17 people
Updated ... ago
5.0 Stars(1)
Flashcard41 terms
Studied by 1755 people
Updated ... ago
4.5 Stars(40)
Flashcard38 terms
Studied by 103 people
Updated ... ago
5.0 Stars(1)
Flashcard42 terms
Studied by 2 people
Updated ... ago
5.0 Stars(1)
Flashcard125 terms
Studied by 3 people
Updated ... ago
5.0 Stars(1)
Flashcard127 terms
Studied by 36 people
Updated ... ago
5.0 Stars(1)
Flashcard73 terms
Studied by 97 people
Updated ... ago
5.0 Stars(1)
Flashcard1000 terms
Studied by 10 people
Updated ... ago
5.0 Stars(1)