Question

question 34
3 points
use the information in the table below to calculate the overall prevalence of the outcome. round your answer to 1 decimal point.

	outcome	no outcome	total
exposed	45	100	145
not exposed	55	35	90
total	100	135	235

add your answer
integer, decimal, or e notation allowed

Explanation:

Step1: Recall prevalence formula

Prevalence = $\frac{\text{Number with outcome}}{\text{Total population}}$

Step2: Identify values from table

Number with outcome = 100, Total population = 235

Step3: Calculate prevalence

Prevalence = $\frac{100}{235}\approx 0.4255$

Step4: Round to 1 decimal point

Prevalence $\approx 0.4$

Answer:

0.4