Using the standard normal distribution, find each probability:
P(z < -2.03) =
P( z > -1.19) =
P( z < 1.93) =
P ( z > -1.77) =
+23254 This site: http://stattrek.com/online-calculator/normal.aspx has a calculator that will compute those values.
It is set up to calculate probabilities below the number that you enter, which works directly for the first and third problem. In the second and fourth problems, you will need to subtract its answer from 1.000.
+23254 This site: http://stattrek.com/online-calculator/normal.aspx has a calculator that will compute those values.
It is set up to calculate probabilities below the number that you enter, which works directly for the first and third problem. In the second and fourth problems, you will need to subtract its answer from 1.000.
