The Following Data Represent the Scores of 50 Students on a Statistics

question 120

Essay

The following data represent the scores of 50 students on a statistics exam. Suppose that
one of the 50 students is chosen at random and that studentʹs score is noted. $$\begin{array} { l l l l l l l l l l } 39 & 51 & 59 & 63 & 66 & 68 & 68 & 69 & 70 & 71 \\71 & 71 & 73 & 74 & 76 & 76 & 76 & 77 & 78 & 79 \\79 & 79 & 79 & 80 & 80 & 82 & 83 & 83 & 83 & 85 \\85 & 86 & 86 & 88 & 88 & 88 & 88 & 89 & 89 & 89 \\90 & 90 & 91 & 91 & 92 & 95 & 96 & 97 & 97 & 98\end{array}$$ a. What is the probability that the student's score is 88?
b. What is the probability that the student's score is less than 60?
c. What is the probability that the student's score is between 70 and 79, inclusive?

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Definitions:

Internal Strain

The deformation within a material or body due to applied stress or pressure.

Displacement

The movement of a body or object from one position to another, often used in geology to describe the shift in position of rock layers along a fault.

Rotation

The act or process of an object turning around an axis, leading to day and night cycles on planets like Earth.

Thrust Faults

Thrust faults are a type of fault where the upper block, or hanging wall, moves up and over the lower block, or footwall, typically occurring at a low angle and often associated with mountain building.