学英语 Probability:Area Models  

出　　处：《中学生数学》2025年第2期F0003-F0003,共1页

摘　　要：Hands-on Mini Lab Work with a partner.·Roll the number cubes and find the product of the numbers rolled.·Repeat nine more times.·Collect the data for the entire class.Organize the outcomes in a table.1.Do certain products occur more often?2.Make and complete a table like the one at the right to find all the possible outcomes.The grid at the right shows the possible products when two number cubes are rolled.The area of the grid is 36 square units.Notice that 6 and 12 make up 8/36 of the area.So,the probability of rolling two numbers whose product is 6 or 12 is 8/38.The area of geometric shapes can be used to find probabilities.Example:Use Area Models to Find Probability PROBABILITY A randomly—dropped counter falls somewhere in the squares.Find the probability that it falls on the shaded squares.

关 键 词：PROBABILITY Area USE 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]