/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 22 A small college has 2,700 studen... [FREE SOLUTION] | 91Ó°ÊÓ

91Ó°ÊÓ

A small college has 2,700 students enrolled. Consider the chance experiment of selecting a student at random. For each of the following pairs of events, indicate whether or not you think they are mutually exclusive and explain your reasoning. a. the event that the selected student is a senior and the event that the selected student is majoring in computer science. b. the event that the selected student is female and the event that the selected student is majoring in computer science. c. the event that the selected student's college residence is more than 10 miles from campus and the event that the selected student lives in a college dormitory. d. the event that the selected student is female and the event that the selected student is on the college football team.

Short Answer

Expert verified
Event pairs a and b are not mutually exclusive, while event pair c is mutually exclusive. Event pair d is not necessarily mutually exclusive without additional information about the college's sports teams.

Step by step solution

01

Analyze event pair a

Consider the events 'the selected student is a senior' and 'the selected student is majoring in computer science'. A student can be a senior as well as major in computer science simultaneously. Therefore, these events are not mutually exclusive.
02

Analyze event pair b

Consider the events 'the selected student is female' and 'the selected student is majoring in computer science'. A student can be female and major in computer science at the same time. Hence, these events are not mutually exclusive.
03

Analyze event pair c

The events 'the selected student's college residence is more than 10 miles from campus' and 'the selected student lives in a college dormitory' are mutually exclusive. The reason is that a student can't live more than 10 miles away from the college and simultaneously live in a college dormitory.
04

Analyze event pair d

Evaluate the events 'the selected student is female' and 'the selected student is on the college football team'. Depending on the college, females may or may not be part of the football team. Without additional information, we should not assume these events are mutually exclusive.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Probability Theory
Understanding probability theory is essential when dealing with the concept of mutually exclusive events. Probability theory is the branch of mathematics that deals with the likelihood of certain outcomes occurring within a given set of circumstances. In the context of our exercise, we focus on the probability of selecting a student from a small college, based on certain characteristics or events.

When two events cannot happen at the same time, they are considered to be mutually exclusive. For instance, a student cannot simultaneously be in their first year of college (a freshman) and in their fourth year (a senior). Analyzing whether events are mutually exclusive helps us make logical conclusions about their probabilities. The addition rule of probability helps to calculate the probability of either of two mutually exclusive events occurring, which is simply the sum of their individual probabilities.
College Student Demographics
College student demographics refer to the statistical data reflecting the characteristics of a student population. This includes information such as age, gender, grade level, major, distance from home to the college, and residence status. Understanding demographic trends is crucial for colleges to support their diverse student bodies.

Diversity in college campuses can influence the possibility of events being mutually exclusive. For instance, in exercise step b, we considered if being female and majoring in computer science were mutually exclusive. The demographics showing an increasing number of females in STEM fields would support that these two events are, in fact, not mutually exclusive. Demographics can provide essential context that affects our analysis of certain events.
Statistical Reasoning
Statistical reasoning involves making sense of data by applying statistical principles and concepts. When evaluating our mutually exclusive events, we relied on statistical reasoning to inform our decisions. In each step of the provided solution, we used logical analysis grounded in an understanding of what it means for events to occur concurrently.

For example, it is statistically reasonable to conclude that a student cannot both live in a dormitory and more than 10 miles from campus. This analysis is based on a proper understanding of the conditions and constraints of college living arrangements. Throughout these exercises, statistical reasoning is applied to infer whether the given pairs of events are mutually exclusive, leading to more robust and logically sound conclusions.

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