Listed below is the amount of commissions earned last month for the eight members of the sales staff at Best Electronics. Calculate the coefficient of skewness using both methods. Hint: Use of a spreadsheet will expedite the calculations.

980.9 |
1,036.5 |
1,099.5 |
1,153.9 |
1,409.0 |
1,456.4 |
1,718.4 |
1,721.2 |

Solution:

Step1 of 1:

The given data is

980.9 |

1,036.50 |

1,099.50 |

1,153.90 |

1,409.00 |

1,456.40 |

1,718.40 |

1,721.20 |

Here we need to find the coefficient of skewness using both methods.

In this problem we don't have a mode. So we need to find another method.

That is,

The formula for pearson coefficient of skewness for the median is

Now, we need to find mean, median and standard deviation.

Mean

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