A Random Sample of Ten Examination Papers in a Course

question 117

Short Answer

A random sample of ten examination papers in a course that was given on a pass or fail basis showed the following scores.
$\begin{array}{cc}\text { Paper Number }&\text { Grade }&\text { Status }\\1 & 65 & \text { Pass } \\2 & 87 & \text { Pass } \\3 & 92 & \text { Pass } \\4 & 35 & \text { Fail } \\5 & 79 & \text { Pass } \\6 & 100 & \text { Pass } \\7 & 48 & \text { Fail } \\8 & 74 & \text { Pass } \\9 & 79 & \text { Pass } \\10 & 91 & \text { Pase }\end{array}$
a. What is the point estimate for the mean of the population?
b. What is the point estimate for the standard deviation of the population?
c. What is the point estimate for the proportion of all students who passed the course?

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Definitions:

Insanity Defense

A legal defense used in court to argue that the defendant was unable to understand the nature of their actions or distinguish right from wrong due to mental illness at the time of the crime.

Legal System

The framework of rules and institutions within a society that govern behavior, resolve disputes, and enforce laws.

Scientific Community

A group of scientists and researchers who share knowledge, practices, and standards within a specific field of study.

Legal Test

A procedure or set of criteria applied by courts to help resolve questions of law.