Let the Study Guides explain all about Standard Deviation from a data set.

See below ...

Covers most Maths topics in Secondary High Schools

Created by an experienced maths teacher

Resources used with students studying Maths in Scottish Secondary Schools

Understanding Standard Deviation is important to ensure your success in tests, assessments and exams.

S1 & S2 Maths | HERE |

National 5 Maths | HERE |

N5 Maths Exam Formulae List | HERE |

Higher Maths | HERE |

AH Maths - Fantastic New Website! | HERE |

GCSE Maths | HERE |

All Other Courses | HERE |

_________________ | _______________________ |

Exam Ques 1 | Standard Deviation |

Exam Ques 3 (N5) | Standard Deviation |

Exam Ques 3 (N5) | Standard Deviation (P1, Q5) |

Mind Map 1 | Comparing Data |

Mind Map 2 | Comparing Data (PowerPoint) |

Mind Map 3 | Standard Deviation |

Mind Map 4 | Standard Deviation (PowerPoint) |

A Standard Deviation exam question is shown below:

*The standard deviation of 1, 2, 2, 2, 8 is equal to √a. Find the value of a*

Source: 2015 N5 Maths, P1, Q5

You are given two formulas in the exam:

Standard Deviation:

*Is a reliable measure of spread since all the statistics are used in its calculation.**Measures the average deviation (difference) of each statistic from the mean (average)*

The larger the Standard Deviation value, the larger the spread.

Finding the Standard Deviation involves a process of drawing a table to determine what to substitute into the above formula.

You are often asked to compare the mean and standard deviation with a different data set and make comments.

*Mean – should include statements like ‘on average’**Standard deviation – should include words like ‘spread’, ‘consistent’ and ‘varies’*

We cover everything you need to know about Standard Deviation in the Study Guides.

Passing your Maths exam significantly increases your career opportunities. Subscribing to the wealth of fantastic additional resources in the Online Study Pack may therefore be one of your best ever investments.

If you are looking for a ‘good’ Pass then give yourself the best possible chance of success in 2017/18 by being fully prepared and subscribe to the complete Online Study Pack today!

to study Standard Deviation

Over 60 Theory Guides on key Maths topics - N5 Exam questions used to aid understanding!

Dozens of worked solutions to worksheets to check your answers

Questions & answers to exam questions by topic - great for addressing problem areas

Step-by-step worked solutions to N5 past exam papers - unavailable elsewhere

Practice Booklets ensuring success in assessments, tests & exams

Self reflection guides to assess your Maths knowledge

Topic Links

Free resources to dozens of National 5 Maths topics are available by clicking on any of the links to the right ...