Statistics

[LilMama19]

Assume that the weights of quarters are normally distributed with a mean of 5.67g and a standard deviation 0.070g. A vending machine will only accept coins weighing between 5.48g and 5.82g. What percentage of legal quarters will be rejected?

The answer I came up with wa 1.96% I forgot how I came up with this answer, just need help showing my work to how I got that answer.

 

[mmm4444bot]

… I came up with wa 1.96% I forgot how I came up with this answer …

How much time expired between when you answered the exercise and when you forgot what you did?

Do you write anything down?

 

[LilMama19]

3 days because usually we dont have to show work.

 

[stapel]

3 days because usually we dont have to show work.

And you've forgotten entirely how to work this sort of exercise in three days? :shock: