Lesson: Applied Arithmetic - 25t01

Probability In-Format

[Page 25 of 36]
Task Click on the correct response and then click Continue.

In a colony of 1,500 lemmings, exactly 30 lemmings are variegated. If one lemming is chosen at random from the colony, what is the probability that it is not variegated?

Continue

There are 1,500 lemmings and only 30 of them are variegated. That means that nearly all the lemmings are not variegated. So the probability of picking a non-variegated lemming is very high.

The first three probabilities are small, so you can eliminate them right off. Here it might be easier to calculate the probability that a lemming is variegated, and subtract that from 1 to find the probability that a lemming is not variegated. So, the probability that a lemming is variegated is:

.

And that makes the probability that a lemming is not variegated .

BackNext v>

Next to display next topic in the chapter.

Video Lessons and 10 Fully Explained Grand Tests

Large number of solved practice MCQ with explanations. Video Lessons and 10 Fully explained Grand/Full Tests.

Quantitative Aptitude Reasoning English General Knowledge Picture Patterns
More for You
MCQ with question Explanations Scholarships and Financial Aid

Quantitative Comparison

Learn techniques how to crack quantitative comparison section

Data Sufficiency

Easily crack the most logical section of the GMAT

PPSC - Research Officer Exam

Learn about the exam of PPSC - Research Officer

All in this Category

You may be interested in

Colleges in karachi

A comprehensive list of major colle ...

Colleges in Sialkot

A list of major colleges in the cit ...

Study in UK

How you can get an opportunity to h ...

LUMS: NOP Financial Aid Program

Find all about LUMS NOP Financial A ...

GRE Chemistry

Complete review of GRE Chemistry wi ...

Pakistan Army Selection and Recruitment Tests

Join Pakistan Army. How it is possi ...

NUST- National University of Sc and Tech

A big name in Pakistan for science ...

Universities in Balochistan

A comprehensive list of universitie ...

About us

EntryTest.com is a test preparation service for students seeking successful career.

About Disclaimer

Quick Test Prep

NUST NET IBA Karachi SAT LUMS LCAT LSE

 

NTS GAT NTS NAT GMAT GRE ACT

Study Abroad

Education Abroad Business Schools MS in USA