91Ó°ÊÓ

What is the area to the right of one?

Is $P(x<1)$ equal to $P(x≤1)$? Why?

How would you represent the area to the left of three in a probability statement?

What is the area to the right of three?

If the area to the left of $x$in a normal distribution is $0.123$, what is the area to the right of $x$?

If the area to the right of $x$ in a normal distribution is $0.543$, what is the area to the left of$x$?

³Ý´Ê±·(–$4,1$)

What is the median?

Use the following information to answer the next four exercises:

$X~N(54,8)$

Find the probability that$x>56.$

Use the following information to answer the next four exercises: $X~N(54,8)$

Find the probability that$x<30$

Find the 80th percentile.