Mandy/Mary/Jenny -- are you suffering an identity crisis?
Please use the same name for your posts.
Please help me, I have know idea how to do this and the assignment is due today!
A manufacturer is producing metal rods, whose lengths are normally distributed with a mean of 75.0cm and a standard deviation of 0.25cm. If 3000 metal rods are produced how many will be between 74.5cm and 75.5 cm in length?
The question is worth4 marks. Thanks in advance
4 answers
... and Candice and Cherie (yesterday).
=(
=(
Google David Lane normal distribution
http://davidmlane.com/hyperstat/z_table.html
1 answer