Math Is Fun Forum

Hi Guys,

I have a lot of trouble interpreting worded questions regarding probability disn's.

In this particular case, could you explain how they answer can be intuitively derived?

Thank you so much for your time!

Q:

The times to failure of a certain brand of ink jet printer are approximately normally distributed with a mean of 1500 hours and a standard deviation of 200 hours.

(b) What should the guarantee time for these printers be if the manufacturer wants only 5% to fail within the guarantee period?

Hi!

I dont understand the working for this question

n dice are to be rolled.  Let Y be the largest number which comes up. (a)       Determine Y's cdf (cumulative distribution function).

What is the intuition behind it?

Thank  you very much for your time!

Hello,

I was wandering if someone could help me understand under what circumstances the following continuous distributions are best to use. (eg, I would like to identify what the best distribution to use when given a scenario in a question)

Uniform

Gamma

Chi Squared

Exponential

Beta

Thank you so much for your time.