Probability

[MINSUN]

How can I get a sas code to get this probability?
Q) 7% of product A do not meet the specifications. When you randomly select 20 products and check the specifications, find the probability that the number of non-standard products is less than 3.

Please help me!

[FreelanceReinh]

Hello @MINSUN and welcome to the SAS Support Communities!

Step 1: Consider how you would compute this probability mathematically.

• What is the name of the distribution of the number of non-standard products in that random sample?
• What are the parameter values?
• What is the name of the function used to compute the probability that a random variable is less than or equal to a certain value?

Step 2: Go to the SAS Programming Documentation and via "Functions" to the list General Functions Listed by Category. Under "Probability" you will easily find what you need after you've answered the questions in step 1.

Step 3: Add SAS code to the function call from step 2 so that the result is written to the log or output window or stored in a dataset.

I hope this helps, but let me know if you get stuck with any of these steps.

[ballardw]

Additional Hint: probability that the number of non-standard products is less than 3 might be thought of as sum of probability non-standard products are exactly 0, 1 and 2.