A Statistician Investigating the Relationship Between the Amount of Precipitation

question 121

Short Answer

A statistician investigating the relationship between the amount of precipitation (in inches) and the number of car accidents gathered data for 10 randomly selected days. The results are presented below. $$\begin{array} { | c | c | c | } \hline \text { Day } & \text { Precipitation } & \text { Number of accidents } \\\hline 1 & 0.05 & 5 \\\hline 2 & 0.12 & 6 \\\hline 3 & 0.05 & 2 \\\hline 4 & 0.08 & 4 \\\hline 5 & 0.10 & 8 \\\hline 6 & 0.35 & 14 \\\hline 7 & 0.15 & 7 \\\hline 8 & 0.30 & 13 \\\hline 9 & 0.10 & 7 \\\hline 10 & 0.20 & 10 \\\hline\end{array}$$ Estimate with 95% confidence the mean daily number of accidents when the daily precipitation is 0.25 inches.

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Definitions:

Index Variable

A variable used to control a loop or to access elements in data structures that use indices for addressing.

Selection Sort

A simple sorting algorithm that divides the input list into two parts: the sublist of items already sorted and the sublist of items remaining to be sorted.

Unsorted List

An unsorted list is a collection of elements that are not arranged in any particular order, making certain search operations potentially less efficient.

Smallest Element

The element with the lowest value or order in a collection or sequence.