Chapter 2, Problem 1LSR

Carefully read through the list of terminology we’ve used in Unit 2. Consider circling the terms you aren’t familiar with and looking them up. Then test your understanding by using the list to fill in the appropriate blank in each sentence.

area

change

compound inequality

constant

conversion factor

dependent variable

dimensional analysis

empirical rule

equation

equivalent

error

estimation

evaluate

expected value

expression

fair game

formula

future value

greater than

greater than or equal to

independent variable

inequality

input

interest rate

less than

less than or equal to

mean

median

mode

normally distributed

output

percent error

principal

range

rate

relative change

standard deviation

time

unit rate

variable

volume

weighted scale

The _______________ of a set of numbers is found by adding all of the numbers, then dividing by how many numbers there are in the list.

To determine

To fill: The blank space in the statement as “The _____ of a set of number is found by adding all of the numbers, then dividing by how many numbers there are in the list.”

Answer to Problem 1LSR

Solution:

The mean of a set of number is found by adding all of the numbers, then dividing by how many numbers there are in the list.

Explanation of Solution

For an example consider a set of number as:

25,75,50

Here, are three numbers in the data set, now to find the average or the mean of this set,

Add all the number and then divide it by 3 as there are three numbers.

$\begin{array}{c}\text{mean}=\frac{25+75+50}{3}\\ =50\end{array}$

Hence, the mean of a set of a number is found by adding all the numbers, then dividing by how many numbers are there in the list.