Back
to top
What formulae do I need to learn for Edexcel S1?
Watch this threadPage 1 of 1
Go to first unread
Skip to page:
AxSirlotl
Badges:
18
Rep:
?
You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#1
I already know a few, for example one for normal distribution and a few for Venn Diagrams, however I don't want to miss one out. Thanks.
0
reply
gdunne42
Badges:
21
Rep:
?
You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#2
Report
#2
(Original post by AxSirlotl)
I already know a few, for example one for normal distribution and a few for Venn Diagrams, however I don't want to miss one out. Thanks.
I already know a few, for example one for normal distribution and a few for Venn Diagrams, however I don't want to miss one out. Thanks.
From memory you'll need
A formula or method to estimate median, quartiles, etc from grouped continuous data
Frequency density = F/CW for histograms
Formula for variance and standard deviation
Probability Formulae for showing events are independent
Be able to rearrange the one in the formula book to derive one for conditional probability
Formula for calculating skewness (usually given) and other ways to identify skew
E(X) and Var(X) for discrete random variable
E(aX+b) and Var(aX+b)
It's worth noting E(X) and var(X) for discrete uniform distribution, though it's rarely tested
Posted from TSR Mobile
0
reply
trooper3
Badges:
2
Rep:
?
You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#3
Report
#3
(Original post by AxSirlotl)
I already know a few, for example one for normal distribution and a few for Venn Diagrams, however I don't want to miss one out. Thanks.
I already know a few, for example one for normal distribution and a few for Venn Diagrams, however I don't want to miss one out. Thanks.
1
reply
username2769500
Badges:
3
Rep:
?
You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#4
Report
#4
SD(X) for discrete random variables also gets affected by coding by 
for histograms
for histograms
0
reply
X
Page 1 of 1
Go to first unread
Skip to page:
Quick Reply
