Asked by Anonymous
the weight of a watermelon is a random normal variable X with a mean of 200 and a variance of 50
Someone selects watermelons that weight in range of 200-k and 200+k with a probability of 60%
what is the value of k?
Someone selects watermelons that weight in range of 200-k and 200+k with a probability of 60%
what is the value of k?
Answers
Answered by
oobleck
so, using your Z table, how many std generate 30% of the area on each side of the mean? Now multiply that by the std to get k.
You can play around with Z table stuff at
http://davidmlane.com/normal.html
You can play around with Z table stuff at
http://davidmlane.com/normal.html
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.