Chapter 2.1, Problem 21P

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8th Edition

Charles Henry Brase + 1 other

ISBN: 9781337558075

Textbook Problem

**Expand Your knowledge: Decimal Data** The fallowing data represent tonnes of wheat harvested each year (1894-1925) from Plot 19 at the Rothamsted Agricultural Experiment Stations, England.

2.71 | 1.62 | 2.60 | 1.64 | 2.20 | 2.02 | 1.67 | 1.99 | 2.34 | 1.26 | 1.31 |

1.80 | 2.82 | 2.15 | 2.07 | 1.62 | 1.47 | 2.19 | 0.59 | 1.48 | 0.77 | 1.04 |

1.32 | 0.89 | 1.35 | 0.95 | 0.94 | 1.39 | 1.19 | 1.18 | 0.46 | 0.70 |

(a) Multiply each data value by 100 to “clear" the decimals.

(b) Use the standard procedures of this section to make a frequency table and histogram with your whole-number data. Use six classes.

(c) Divide class limits, class boundaries, and class midpoints by 100 to get back to your original data values.

**(a)**

To determine

**To find:** The data that are multiply with 100 for each value in the data..

Explanation

**Calculation:** The data represent the tons of wheat harvested each year and there are 32 values in the data set. To find the decimal data in to “clear” data that multiply with each value in the data by 100. The calculation is as follows:

Data |
Data*100 |
Data |
Data*100 |
Data |
Data*100 |
Data |
Data*100 |

2.71 | 2.34 | 234 | 1.47 | 147 | 1.35 | 135 | |

1.62 | 1.26 | 126 | 2.19 | 219 | 0.95 | 95 | |

2.6 | 1.31 | 131 | 0.59 | 59 | 0.94 | 94 | |

1.64 | 164 | 1.8 | 180 | 1.48 | 148 | 1.39 | 139 |

2.2 | 220 | 2.82 | 282 | 0.77 | 77 | 1.19 | 119 |

2.02 | 202 | 2.15 | 215 | 2.04 | 204 | 1.18 | 118 |

1 |

**(b)**

To determine

**To find:** The class width, class limits, class boundaries, midpoint, frequency, relative frequency, and cumulative frequency of the data..

**(c)**

To determine

**To find:** The class limits, class boundaries, and midpoints in the table by dividing 100..

Sect-2.1 P-1PSect-2.1 P-2PSect-2.1 P-3PSect-2.1 P-4PSect-2.1 P-5PSect-2.1 P-6PSect-2.1 P-7PSect-2.1 P-8PSect-2.1 P-9PSect-2.1 P-10P

Sect-2.1 P-11PSect-2.1 P-12PSect-2.1 P-13PSect-2.1 P-14PSect-2.1 P-15PSect-2.1 P-16PSect-2.1 P-17PSect-2.1 P-18PSect-2.1 P-19PSect-2.1 P-20PSect-2.1 P-21PSect-2.1 P-22PSect-2.1 P-23PSect-2.1 P-24PSect-2.1 P-25PSect-2.2 P-1PSect-2.2 P-2PSect-2.2 P-3PSect-2.2 P-4PSect-2.2 P-5PSect-2.2 P-6PSect-2.2 P-7PSect-2.2 P-8PSect-2.2 P-9PSect-2.2 P-10PSect-2.2 P-11PSect-2.2 P-12PSect-2.2 P-13PSect-2.2 P-14PSect-2.2 P-15PSect-2.2 P-16PSect-2.3 P-1PSect-2.3 P-2PSect-2.3 P-3PSect-2.3 P-4PSect-2.3 P-5PSect-2.3 P-6PSect-2.3 P-7PSect-2.3 P-8PSect-2.3 P-9PSect-2.3 P-10PCh-2 P-1CRCh-2 P-2CRCh-2 P-3CRCh-2 P-4CRCh-2 P-5CRCh-2 P-6CRCh-2 P-7CRCh-2 P-8CRCh-2 P-9CRCh-2 P-10CRCh-2 P-11CRCh-2 P-12CRCh-2 P-13CRCh-2 P-14CRCh-2 P-15CRCh-2 P-16CRCh-2 P-17CRCh-2 P-18CRCh-2 P-1DHGPCh-2 P-2DHGPCh-2 P-1LCWPCh-2 P-2LCWPCh-2 P-3LCWPCh-2 P-1UTACh-2 P-2UTACh-2 P-3UTA

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