Edexcel A-Level Statistics
Acceptance location - ANS-rejection area for the alternative speculation inside the trying out of a
speculation.
Bivariate facts - ANS-statistics that have variables i.E. In which every member of the sample
requires the values of variables.
Box plot comparisons - ANS-- symmetrical distribution?
- moderate distinction?
- Consistency?
- Skewed?
Conditions for a Binomial Distribution - ANS-- trials are performed on random samples
- trials are independed
- p of success is regular from trial to trial
- simplest probability of success or failure
Critical Region - ANS-the rejection vicinity for the null speculation in the checking out of a
speculation.
Critical Value - ANS-a price that is as compared to the take a look at statistic to determine
whether or not to reject the null speculation. If the absolute fee of your take a look at statistic is
greater than (or much less than when considering a negative check statistic) the important
value, you can claim statistical importance and reject the null speculation.
Dependent Variable - ANS-variable whose value depends at the price of every other variable.
E.G. In the instance above, temperature is the dependent variable.
Event - ANS-set of feasible results from an experiment
Events A and B - ANS-
extrapolation - ANS-prediction out of doors of variety of information - in addition past
information, the less reliable the result
Histogram - ANS-- shows non-stop records therfore no gaps
- should trade the periods to be continuous (8-11 = 7.Five <= X < eleven.5)
How can non-linear relationships be transformed into linear relationships - ANS-exponential
equation
y=kb^x
How lots of the records lies within 2SD - ANS-95%
How tons of the statistics lies inside 3SD? - ANS-Nearly all (ninety nine.7%)
Hypothesis take a look at - ANS-Statistical take a look at this is used to determin whether or not
there's sufficient evidence in a pattern of data to deduce that a sure condition is real for the
whole population
If occasions A and B are mutually distinct... - ANS-...They can not take place together and:
P(A∪B) = P(A) + P(B)
Acceptance location - ANS-rejection area for the alternative speculation inside the trying out of a
speculation.
Bivariate facts - ANS-statistics that have variables i.E. In which every member of the sample
requires the values of variables.
Box plot comparisons - ANS-- symmetrical distribution?
- moderate distinction?
- Consistency?
- Skewed?
Conditions for a Binomial Distribution - ANS-- trials are performed on random samples
- trials are independed
- p of success is regular from trial to trial
- simplest probability of success or failure
Critical Region - ANS-the rejection vicinity for the null speculation in the checking out of a
speculation.
Critical Value - ANS-a price that is as compared to the take a look at statistic to determine
whether or not to reject the null speculation. If the absolute fee of your take a look at statistic is
greater than (or much less than when considering a negative check statistic) the important
value, you can claim statistical importance and reject the null speculation.
Dependent Variable - ANS-variable whose value depends at the price of every other variable.
E.G. In the instance above, temperature is the dependent variable.
Event - ANS-set of feasible results from an experiment
Events A and B - ANS-
extrapolation - ANS-prediction out of doors of variety of information - in addition past
information, the less reliable the result
Histogram - ANS-- shows non-stop records therfore no gaps
- should trade the periods to be continuous (8-11 = 7.Five <= X < eleven.5)
How can non-linear relationships be transformed into linear relationships - ANS-exponential
equation
y=kb^x
How lots of the records lies within 2SD - ANS-95%
How tons of the statistics lies inside 3SD? - ANS-Nearly all (ninety nine.7%)
Hypothesis take a look at - ANS-Statistical take a look at this is used to determin whether or not
there's sufficient evidence in a pattern of data to deduce that a sure condition is real for the
whole population
If occasions A and B are mutually distinct... - ANS-...They can not take place together and:
P(A∪B) = P(A) + P(B)
