Chapter 5: Q6 (page 189)

Find the average of the following numbers: 4 and $- 7$ .

Short Answer

Expert verified

The average of the numbers 4 and $- 7$ is $- 1.2$ .

Step by step solution

Step 1. Apply the concept of the average of numbers.

The average of two numbers is calculated by adding up all the numbers, then dividing the total by the count of numbers.

Step 2. Find the sum of the numbers.

Here the numbers are $4, - 7$ .

Calculate the sum of the numbers as follows:

$\begin{matrix} Sumofthenumbers = 4 + (- 7) \\ = 4 - 7 \\ = - 3 \end{matrix}$

Count of the numbers =2

Step 3. Find the average.

Divide the sum of the numbers to the count of the numbers to find the average of the numbers as follows:

$\begin{matrix} Average = \frac{- 3}{2} \\ = - 1.5 \end{matrix}$

Therefore, the average of the numbers is $- 1.5$ .

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.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

Recommended explanations on Math Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Find the average of the following numbers: 4 and $- 7$ .

Short Answer

Step by step solution

Step 1. Apply the concept of the average of numbers.

Step 2. Find the sum of the numbers.

Step 3. Find the average.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Decision Maths

Calculus

Probability and Statistics

Logic and Functions

Theoretical and Mathematical Physics

Applied Mathematics

Study anywhere. Anytime. Across all devices.

Find the average of the following numbers: 4 and −7.

Short Answer

Step by step solution

Step 1. Apply the concept of the average of numbers.

Step 2. Find the sum of the numbers.

Step 3. Find the average.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Decision Maths

Calculus

Probability and Statistics

Logic and Functions

Theoretical and Mathematical Physics

Applied Mathematics

Study anywhere. Anytime. Across all devices.

Find the average of the following numbers: 4 and $- 7$ .