Question

Based on statistics from a worldwide health organization, in 2005 there were22.6 million people worldwide living with a certain disease, and 1.9 million deaths from the disease. By 2015,the number of people living with the disease had grown to 38.9 million deaths were reported. Find the percent change for each statistic, and write any conclusion you can draw.

Answer 1

Percent change of people living with the disease = 72.1%

Percent change of number of death = 5.2%

Step-by-step explanation:

The Number of people living with the disease increased from 22.6 million in 2005 to 38.9 million in 2015

To get the percentage, we will apply the formula:

`percent\text{ change = }\frac{New\text{ value - Old value}}{Old\text{ value}}*\text{ 100\%}`
`\begin{gathered} new\text{ value = 38.9 million, old value = 22.6 million} \\ percent\text{ change = }\frac{38.9\text{ - 22.6}}{22.6}\text{ }*100 \\ percent\text{ change = 0.721 }*\text{ 100\% = 72.1\%} \end{gathered}`

The number of death increased from 1.9 million to 2 million from 2005 to 2015:

`\begin{gathered} new\text{ value = 2 million, old value = 1.9 million} \\ The\text{ percent change = }(2-1.9)/(1.9)*100\text{ \%} \\ The\text{ percent change = 0.052 }*\text{ 100\% = 5.2\%} \end{gathered}`

Conclusion:

The number of people living with the disease increased drastically within 10 years.

But the percent change in the number of death isn't as high as the number of people living with the disease. It means the disease is highly infectious but has a low death rate