Chapter 7, Problem 1IR

The following pictograph shows the six occupations with the largest estimated numerical increase in employment in the United States between 2016 and 2026. Use this graph to answer Exercises 1 through 4.

  

1. Approximate the increase in the number of softwar develpers from 2016 to 2026.

To determine

The approximate increase in the number of software developers from 2016 to 2026

Answer to Problem 1IR

  $26,000\text{workers}$

Explanation of Solution

Given information:

Pictograph showing the six occupations with the largest estimated numerical increase in employment in the United States between 2016 and 2026

  

Concept Used:

Pictograph is a graph in which pictures are used they contains a key that explains the meaning of the symbol used. It’s advantage is that comparisons can easily be made.

Calculation:

In order determine the approximate increase in the number of software developers from 2016 to 2026, we have to read the given pictograph and find the number of symbols software developers correspond to.

As, the given pictograph shows that the software developers corresponds to $6\text{ and half}$ symbols, where each symbol represents $40,000\text{ workers}$

Thus, the approximate increase in the number of software developers from 2016 to 2026 is

  $\begin{array}{l}6\text{ and half }of40,000\text{ workers}\\ \text{=}\left(6\text{ and half}\right)\times 40,000\text{ workers}\\ \text{=}\left(6+\frac{1}{2}\right)\times 40,000\text{workers}\\ =\left(\frac{12+1}{2}\right)\times 40,000\text{workers}\\ \text{=}\frac{13}{\cancel{2}}\times \cancel{2}\times 20,000\text{workers}\\ \text{=13}\times 20,000\text{workers}\\ =26,000\text{workers}\end{array}$

Thus, there is increment of approximate $26,000\text{workers}$ in the software developer