korey is planning to open a comic - book store near his home. after completing a population survey for 3,520…

korey is planning to open a comic - book store near his home. after completing a population survey for 3,520 homes in a 5 mile radius, korey created the chart below to include in the market analysis section of his business plan. korey expects 75% of his business to come from kids in high school and grade school. about how many of homes surveyed fit into one of these two categories? population survey a. 493 b. 637 c. 1,126 d. 1,760

korey is planning to open a comic - book store near his home. after completing a population survey for 3,520 homes in a 5 mile radius, korey created the chart below to include in the market analysis section of his business plan. korey expects 75% of his business to come from kids in high school and grade school. about how many of homes surveyed fit into one of these two categories? population survey a. 493 b. 637 c. 1,126 d. 1,760

Answer

Explanation:

Step1: Find the percentage of homes with kids in high - school or grade school

The percentage of homes with kids in high school is 18% and with kids in grade school is 32%. So the total percentage of homes with kids in high school or grade school is $18%+32% = 50%$.

Step2: Calculate the number of homes

The total number of homes surveyed is 3520. We want to find 50% of 3520. Using the formula $n = p\times N$, where $p$ is the percentage (in decimal form) and $N$ is the total number. $p = 0.5$ and $N=3520$. So $n=0.5\times3520 = 1760$.

Answer:

d. 1,760