Test Scores
the Scores on a Calculus Test for a Random

question 62

Essay

Test scores
The scores on a calculus test for a random sample of 40 students are as follows:
$$\begin{array} { l l l l l l l l l l } 63 & 74 & 42 & 65 & 51 & 54 & 36 & 56 & 68 & 57 \\62 & 64 & 76 & 67 & 79 & 61 & 81 & 77 & 59 & 38 \\84 & 68 & 71 & 94 & 71 & 86 & 69 & 75 & 91 & 55 \\48 & 82 & 83 & 54 & 79 & 62 & 68 & 58 & 41 & 47\end{array}$$
-Consider the following cumulative frequency distribution.
$$\begin{array} { | c | c | c | } \hline \text { Classes Limits } & \text { Cumulative Frequency } & \text { Frequency } \\\hline < 5 & 11 & \\< 10 & 18 & \\< 15 & 24 & \\< 20 & 33 & \\< 25 & 45 & \\\hline\end{array}$$ Fill in the frequencies for each class in the above table.

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Definitions:

Degradation Inhibitor

A substance that prevents or slows down the breakdown or deterioration of another substance.

Neuron

A nerve cell that is the basic building block of the nervous system, responsible for transmitting information throughout the body.

Synapse

The junction between two neurons where the transmission of electrical or chemical signals occurs.

Epigenetic Processes

Biological mechanisms that alter gene expression without changing the DNA sequence, influencing how genes are turned on or off.