A Friend Has Constructed the Following Frequency Distribution of Test

question 7

Essay

A friend has constructed the following frequency distribution of test scores in his business statistics class:
$$\begin{array} { | l | l } \hline \text { Score } & \text { Number af Students } \\\hline 40 \text { and below } & 2 \\\hline 40 - 50 & 6 \\\hline 50 - 60 & 8 \\\hline 60 - 70 & 13 \\\hline 70 - 80 & 11 \\\hline 80 - 90 & 5 \\\hline 90 \text { and above } & 4 \\\hline\end{array}$$ He asks for your feedback.What advice would you give him?

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Definitions:

Conifers

Trees and shrubs that bear cones and typically have needle-shaped or scale-like leaves, such as pines and cedars.

Boreal Forest

Extensive high-latitude forest of the Northern Hemisphere; conifers are the predominant vegetation.

Temperatures

A measure of the warmth or coldness of an object or substance with reference to some standard value.

Freshwater Lakes

Bodies of standing water, of various sizes, that contain low concentrations of salt, making them habitable for a variety of freshwater organisms.