Question
I need help solving these problems, I don't understand how to solve them. The scores on a college entrance examination are normally distributed with a
I need help solving these problems, I don't understand how to solve them.
The scores on a college entrance examination are normally distributed with a mean of 550 and a standard deviation of 100. For a sample of 30 students, what is the probability that the sample
- Has a mean of at least 600?
- Has a mean between 500 and 575?
- Has a mean less than 575?
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Linear Algebra and Its Applications
Authors: Gilbert Strang
4th edition
30105678, 30105676, 978-0030105678
