The Following Table Lists the Amounts Paid in Mortgages as a Percentage

question 74

Essay

The following table lists the amounts paid in mortgages as a percentage of the household income in the town Aponia.Calculate the variance and standard deviation of the data, if mean is given as 22.4%.The percentage (x)values are estimated as midpoints of each percentage range.
$\begin{array}{l|l|l}\begin{array}{l}\text { Mortgage as a } \\\text { percentage of } \\\text { household income in } \\\text { Aponia }\end{array} & & \\\hline \text { Group in \% } & \begin{array}{l}\text { Percentag } \\\text { e (x) }\end{array} & \begin{array}{l}\text { Number of households } \\\text { (f) }\end{array} \\\hline 0-10 & 5 & 4567 \\\hline 10-20 & 15 & 6562 \\\hline 20-30 & 25 & 3356 \\\hline 30-40 & 35 & 2975 \\\hline 40-50 & 45 & 1644 \\\hline 50-60 & 55 & 1376 \\\hline\end{array}$

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Definitions:

Capillaries

Microscopic blood vessels that facilitate the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste substances between the blood and tissues.

Fenestrated Capillaries

Capillaries with small pores in their endothelial lining, allowing for the rapid exchange of substances between blood and tissues.

Large Fenestrae

Large fenestrae are large pores found in some capillary walls, facilitating the rapid exchange of substances between blood vessels and surrounding tissues.

Endocrine Glands

Glands that produce hormones and release them directly into the bloodstream to regulate various body functions.