Everything else Flashcards
1
Q
fd
A
f / cw
2
Q
medium
A
m = n/2
if whole - .5
if decimal - round UP
3
Q
what does a smaller IQR mean
A
data is closer together / more constant
4
Q
what does a medium mean
A
on average _ (more accurate)
5
Q
what is the response variable
A
what is being measured
6
Q
tree diagram - without replacement
A
no / no - 1
7
Q
tree diagram - not a no just p
A
other branch is 1 - p
8
Q
mean
A
sum of fx / sum of f
9
Q
var (o^2)
A
sum of x^2 / n - (sum of x / n)^2 / (mean)^2
10
Q
s.d. (o)
A
sqr of o^2
11
Q
if add data which = mean, how does affect s.d.
A
data will be closer to the mean = decrease variance and lower s.d.
12
Q
outlier - accuracy
A
one will less / none outliers is more accurate
13
Q
when calculating range
A
OUTLIERS COUNT
14
Q
what is an outlier
A
BEYOND - if it is the outlier, it still counts
