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Created page with "==Key Stage 4== ===Meaning=== Results are accurate if they are close to the true value. ===About Accuracy=== : Accuracy is achieved by: :*Removing Systematic Er..."
==Key Stage 4==
===Meaning===
[[Results]] are [[accurate]] if they are close to the true value.
===About Accuracy===
: [[Accuracy]] is achieved by:
:*Removing [[Systematic Error|systematic errors]] and [[Zero Error|zero errors]] from the [[reading]]s.
:*[[Control Variable|Controlling]] all the [[variable]]s except for the [[Independent Variable|independent variable]] and the [[Dependent Variable]].
: If there are [[Random Error|random errors]] and a small [[Sample Size|sample size]] taking [[repeat]] [[readings]], removing [[anomaly|anomalies]] and calculating an [[Mean Average|average]] can improve the '''accuracy'''.
: If there are [[Systematic Error|systematic error]]s or [[Zero Error|zero errors]] the [[results]] can be improved by finding the source of the [[error]] and correcting it.
===Accuracy vs Precision===
: The number [[pi]] is 3.14159265359 correct to 12 [[Significant Figures|significant figures]].
: 3.1 is an [[accurate]] value for [[pi]] but it is not very [[precise]].
: 3.2111 is a [[precise]] value for [[pi]] but it is '''inaccurate'''.
===Meaning===
[[Results]] are [[accurate]] if they are close to the true value.
===About Accuracy===
: [[Accuracy]] is achieved by:
:*Removing [[Systematic Error|systematic errors]] and [[Zero Error|zero errors]] from the [[reading]]s.
:*[[Control Variable|Controlling]] all the [[variable]]s except for the [[Independent Variable|independent variable]] and the [[Dependent Variable]].
: If there are [[Random Error|random errors]] and a small [[Sample Size|sample size]] taking [[repeat]] [[readings]], removing [[anomaly|anomalies]] and calculating an [[Mean Average|average]] can improve the '''accuracy'''.
: If there are [[Systematic Error|systematic error]]s or [[Zero Error|zero errors]] the [[results]] can be improved by finding the source of the [[error]] and correcting it.
===Accuracy vs Precision===
: The number [[pi]] is 3.14159265359 correct to 12 [[Significant Figures|significant figures]].
: 3.1 is an [[accurate]] value for [[pi]] but it is not very [[precise]].
: 3.2111 is a [[precise]] value for [[pi]] but it is '''inaccurate'''.