Ch 6.1-6.3

the probability of observing a specific value for a normal random variable is...?

0 (i.e. P(X = x) = 0)

How to find area:

1) Draw the standard normal curve. 2) Shade in the desired area. 3) Determine how to find the probabilities corresponding to the shaded area using the table (you must use the table on in class quizzes and exams). 4) Use StatCrunch to check your work on homework and in MyStatLab.

Standard Normal Distribution

a normal distribution with mean = 0 and standard deviation = 1

Provide z-value given a probability

draw picture, shade area, label probability

Area under the Normal Curve

the area under the normal curve for any interval of values represents the probability that a randomly selected individual from the population will have the characteristic described by the interval of numbers