20,345
edits
Changes
Created page with "==Key Stage 4== ===Meaning=== Uncertainty is the amount by which a reading may be different from the true value. ===About Uncertainty=== : Uncertainty is caused b..."
==Key Stage 4==
===Meaning===
[[Uncertainty]] is the amount by which a [[reading]] may be different from the true value.
===About Uncertainty===
: [[Uncertainty]] is caused by [[Random Error|random errors]] which take place during an [[experiment]].
: The [[uncertainty]] in a [[reading]] can be found by [[repeat]]ing the [[reading]] and halving the [[range]] of those [[reading]]s.
<math>Uncertainty=\frac{range}{2}</math>.
: The [[uncertainty]] in a [[result]] is how far above or below the [[Mean Average|average]] [[result]] the true value may be.
===Examples===
{| class="wikitable"
|-
|[[File:ResultsTableCalculation.png|center|400px]]
| style="height:20px; width:200px; text-align:center;" |The [[range]] is found by [[subtract]]ing the smallest from the largest value and the [[uncertainty]] can be found by halving that [[range]].
The [[uncertainty|uncertainties]] in this [[Table of Results|results table]] are:
0/2 = 0
0.5/2 = 0.25
0.3/2 = 0.15
0.2/2 = 0.1
0.4/2 = 0.2
0.5/2 = 0.25
|}
===Meaning===
[[Uncertainty]] is the amount by which a [[reading]] may be different from the true value.
===About Uncertainty===
: [[Uncertainty]] is caused by [[Random Error|random errors]] which take place during an [[experiment]].
: The [[uncertainty]] in a [[reading]] can be found by [[repeat]]ing the [[reading]] and halving the [[range]] of those [[reading]]s.
<math>Uncertainty=\frac{range}{2}</math>.
: The [[uncertainty]] in a [[result]] is how far above or below the [[Mean Average|average]] [[result]] the true value may be.
===Examples===
{| class="wikitable"
|-
|[[File:ResultsTableCalculation.png|center|400px]]
| style="height:20px; width:200px; text-align:center;" |The [[range]] is found by [[subtract]]ing the smallest from the largest value and the [[uncertainty]] can be found by halving that [[range]].
The [[uncertainty|uncertainties]] in this [[Table of Results|results table]] are:
0/2 = 0
0.5/2 = 0.25
0.3/2 = 0.15
0.2/2 = 0.1
0.4/2 = 0.2
0.5/2 = 0.25
|}