/*! 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 69 In a class of 40 students, 21 ha... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 12: Problem 69

In a class of 40 students, 21 have examination scores of \(77 \%\). Which measure or measures of central tendency can you immediately determine? Explain your answer.

Short Answer

Expert verified
The only measure of central tendency that can be immediately determined from the given information is the mode, which is 77% in this case.

Step by step solution

01

Understanding The Problem

First, start by understanding what the problem is asking. The task is to determine which measures of central tendency (mean, median, mode) can be immediately determined from the fact that out of 40 students, 21 scored 77% in the examination.
02

Determine the Mode

The mode in a set of data is the value that occurs most frequently. From the problem statement, it's clear that 21 out of 40 students scored 77% on the examination. This means that 77% is the score that appears most frequently in our dataset, making it the mode.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

A set of data items is normally distributed with a mean of 400 and a standard deviation of 50. Find the data item in this distribution that corresponds to the given z-score. \(z=-1.5\)

For this activity, group members will conduct interviews with a random sample of students on campus. Each student is to be asked, "What is the worst thing about being a student?" One response should be recorded for each student. a. Each member should interview enough students so that there are at least 50 randomly selected students in the sample. b. After all responses have been recorded, the group should organize the four most common answers. For each answer, compute the percentage of students in the sample who felt that this is the worst thing about being a student. c. Find the margin of error for your survey. d. For each of the four most common answers, write a statement about the percentage of all students on your campus who feel that this is the worst thing about being a student.

Scores on a dental anxiety scale range from 0 (no anxiety) to 20 (extreme anxiety). The scores are normally distributed with a mean of 11 and a standard deviation of 4.Find the \(z\)-score for the given score on this dental anxiety scale. 12

A set of data items is normally distributed with a mean of 60 and a standard deviation of 8 . In Exercises 33-48, convert each data item to a z-score. 68

The scores on a test are normally distributed with a mean of 100 and a standard deviation of 20.Find the score that is one-half a standard deviation below the mean.
See all solutions

Recommended explanations on Math Textbooks

Decision Maths

Read Explanation

Discrete Mathematics

Read Explanation

Logic and Functions

Read Explanation

Mechanics Maths

Read Explanation

Geometry

Read Explanation

Applied Mathematics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.