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Question

A sausage making machine occasionally produces misshapen sausages. The odds of the machine producing 0, 1, 2, 3, 4, or 5 sausages are .09, .07, .1, .04, .12 and .02 respectively. Find the variance and standard deviation.

Answer

1 Find and square the mean (here .81). Set this number aside.

2 Make a probability distribution chart :

3 Square the top number, X, and multiply it by the bottom number ,P(X).

4: Add all of the numbers together.

5\(\sqrt{Step\ 4-Step\ 1}\)= SD

2 Make a probability distribution chart :

Number of misshapper sausages X | 0 | 1 | 2 | 3 | 4 | 5 |

Proability P(X) | .09 | .07 | .1 | .04 | .12 | .02 |

4: Add all of the numbers together.

5\(\sqrt{Step\ 4-Step\ 1}\)= SD

Question

A sausage making machine occasionally produces misshapen sausages. The odds of the machine producing 0, 1, 2, 3, 4, or 5 sausages are .09, .07, .1, .04, .12 and .02 respectively. Find the variance and standard deviation.

Answer

1 Find and square the mean (here .81). Set this number aside.

2 Make a probability distribution chart :

3 Square the top number, X, and multiply it by the bottom number ,P(X).

4: Add all of the numbers together.

5\(\sqrt{Step\ 4-Step\ 1}\)= SD

2 Make a probability distribution chart :

Number of misshapper sausages X | 0 | 1 | 2 | 3 | 4 | 5 |

Proability P(X) | .09 | .07 | .1 | .04 | .12 | .02 |

4: Add all of the numbers together.

5\(\sqrt{Step\ 4-Step\ 1}\)= SD

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#### pdf

owner: naxplast06 - (no access) - Deviant S. - The Practically Cheating Statistics Handbook (2010, CreateSpace Independent Publishing Platform).pdf, p75

status | not learned | measured difficulty | 37% [default] | last interval [days] | |||
---|---|---|---|---|---|---|---|

repetition number in this series | 0 | memorised on | scheduled repetition | ||||

scheduled repetition interval | last repetition or drill |

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