Final answer:
The program rating for 'American Idol' is calculated by dividing the number of households that watched the show by the total number of television households, and then multiplying by 100 to get a percentage. The correct answer, rounded to the nearest whole number, is approximately 21 option b.
Step-by-step explanation:
The student is asking about calculating the program rating for a television show, specifically American Idol. The program rating is a percentage that represents the number of television households that watched a specific program, out of the total number of television households in a certain geographical area. To find the program rating, we use the following formula:
Program Rating = (Viewers / Total Households) × 100
In this case, 20 million households watched American Idol out of 97 million total television households. When we perform the calculation:
Program Rating = (20,000,000 / 97,000,000) × 100
Program Rating ≈ 20.62
Therefore, the correct answer is option B. 21 (rounded to the nearest whole number).