Question

there are 30,000 adults living in palm city. in examining attitudes toward the news, a research group asked a random sample of palm city adults \what is your main source of news?\ the results are shown below.

main source of news	number of adults
internet	90
television	135
radio	22
other	46

based on the sample, predict the number of adults in palm city whose main source of news is the internet or newspapers. round your answer to the nearest whole number. do not round any intermediate calculations.

Explanation:

Step1: Calculate total sample size

$64 + 90+135 + 22+46=357$

Step2: Calculate number of adults with internet or newspapers as main source in sample

$64 + 90 = 154$

Step3: Set up proportion to predict for population

Let $x$ be the number of adults in Palm - City whose main source of news is the internet or newspapers. Then $\frac{154}{357}=\frac{x}{30000}$.

Step4: Solve for $x$

$x=\frac{154\times30000}{357}=\frac{4620000}{357}\approx12941$

Answer:

$12941$