In Exercises 33 and 34, use the pie chart at the left, which shows the percent distribution of the number of students in U.S. public schools in a recent year. (Source: U.S. National Center for Education Statistics)

34. Find the probability of randomly selecting a school with 300 or more students.

검증된 단계별 안내

Identify the relevant categories in the pie chart that represent schools with 300 or more students. These categories are '300–499', '500–999', and '1000 or more'.

Determine the percentage of students in each of these categories from the pie chart: '300–499' is 28.1%, '500–999' is 32.7%, and '1000 or more' is 9.4%.

Add these percentages together to find the total percentage of students in schools with 300 or more students. Use the formula: Total Percentage = Percentage(300–499) + Percentage(500–999) + Percentage(1000 or more).

Convert the total percentage into a probability. Since percentages are out of 100, divide the total percentage by 100 to express it as a probability.

Interpret the result as the probability of randomly selecting a school with 300 or more students.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Probability

Probability is a measure of the likelihood that a particular event will occur, expressed as a number between 0 and 1. In this context, it refers to the chance of randomly selecting a school with 300 or more students from the total distribution shown in the pie chart.

Pie Chart Interpretation

A pie chart visually represents data as slices of a circle, where each slice corresponds to a category's proportion of the whole. Understanding how to read the percentages in the pie chart is essential for determining the probability of selecting a school based on its student population.

Cumulative Distribution

Cumulative distribution refers to the total percentage of observations that fall below a certain value. To find the probability of selecting a school with 300 or more students, one must calculate the cumulative percentage of schools with fewer than 300 students and subtract it from 100%.

In Exercises 33 and 34, use the pie chart at the left, which shows the percent distribution of the number of students in U.S. public schools in a recent year. (Source: U.S. National Center for Education Statistics)34. Find the probability of randomly selecting a school with 300 or more students.