CIE A Level Maths: Probability & Statistics 1復習筆記3.2.2 Calculating Binomial Probabilities
Calculating Binomial Probabilities
Where does the formula for a binomial distribution come from?
The formula allows statisticians to quickly find probabilities for larger values of?n?without needing to draw the whole tree diagram- Your calculator may have a function that would allow you to calculate binomial probabilities
- You can learn how to use this to check your work but it is important you always show your working using the formula to get the marks in the exam
How do I calculate the cumulative probabilities for a binomial distribution?
- Most of the time you will be required to calculate?cumulative binomial probabilities?rather than individual ones
- Use the formula to find the individual probabilities and then add them up
- Make sure you are confident working with inequalities for?discrete values
- Only integer values will be included so it is easiest to look at which integer values you should include within your calculation
- Sometimes it is quicker to find the probabilities that are?not being asked for?and subtract from one
Worked Example
Exam Tip
- Looking carefully at the inequality within the probability is key here, make sure you consider which integers should be counted within your calculations.
轉載自savemyexams
以上就是關于【CIE A Level Maths: Probability & Statistics 1復習筆記3.2.2 Calculating Binomial Probabilities】的解答，如需了解學校/賽事/課程動態，可至翰林教育官網獲取更多信息。
往期文章閱讀推薦：
MIT官方發布【2026年夏季推薦閱讀書單】！橫跨科學/人文/經濟...
全網破防！ALevel CIE數學M1疑似錯題？經濟P2難度飆升？5月6日大考考情分析必看！
翰林AMC8視頻課重磅上線！
國際競賽真題資源免費領取
