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Thanks for explaining, but that's the thing I have been trying but I'm only given lecture notes which arnt helpful at all. It's a semester course. So they don't provide a text book for it. So all I...

Oh sorry, thank you so much for your help :-) I'm trying to the other question now god my lecturer is so bad. Again thank you

by plug 30 back into the equation do you mean, 300/30?
sorry I'm starting to get confused, thanks for your help though, its really helping me out.

Please help me :)

A new muscle relaxant is available. Researchers from the firm developing the relaxant have done studies that indicate that the time lapse between administration of the drug and beginning effects of...

American elevator design: Women’s weights are normally distributed with a mean of 143lb and a standard deviation of 29lb and men’s weights are normally distributed with a mean of 172lb and standard...

I've also got another question which has a mean of 38 and SD of 5 then the question asks ' what is the probability that the time it takes to go to into effect is less then 35 min'?
So would you...

I dot understand what to do in this question? For the SD I know how to find that using a computer but is there a manual way to do it?

Question

An iPod had about 10,000 songs. Assume the...

Thanks guys I think my problem is the table I'm not 100% on reading them which makes this assignmnet really hard. I've got heaps of questions to go that I need help in. But if you guys know a link...

Thank you so much I have Been stressing all might about this I'll try the other questions and see how I go.
Again, thank you :-)

The length of pregnancies is normally distributed with mean of 268 days and standard deviation of 15 days.
a. One classical use of the normal distribution is inspired by a letter to “Dear Abby” in...

hi can you please help me I have a few questions but this one is important

The quoted mean number of milligrams of sodium in a certain brand of low-salt microwave frozen dinners is 670mg. A random...