Detormine the total area under the standard normal curve for parts (a) through (

Question

Detormine the total area under the standard normal curve for parts (a) through (c) below.For each, be sure to draw a standard normal curve and shade the area that is to be found Click here to view the standard normal distnbution table (page 1) (a) Determine the total area under the standard normal curve to the left of z-2 or to the right of z2 Draw a standard normal ourve and shade the area that is to be found. Choose the correct graph below 6 Graph d O Slick here to view grach b. O Click here to viewgraph a. The total area under the standard normal curve to the left of z-2 or to the right of z 2 is Round to four decimal places as needed.) (b) Determine the total area under the standard normal ourve to the left of z -1.29 or to the right of z 2.29 Draw a standard normal ourve and shade the area that is to be found Choose the oorrect graph below Click here o.yiew.graphb Print Done OClick hene to.view graph d Cackhere to view.grach a The lotai area under the standard normal curve tothe left of ?-129ortothe rghtofz.zaD Round to four decimal places as needed.) (c) Determine the al area under the standard normai curve to the left of z-0.74 or to the right of z 1.38 Click to select your answerls)

Explanation / Answer

a)

From Z score table

P( Z < -2 or Z > 2) = P( Z < -2) + P( Z > 2) = 0.0228 +0.0228 = 0.0455

b)

From Z score table

P( Z < -1.29 or Z > 2.29) = P( Z < -1.29) + P( Z > 2.29) = 0.0985 +0.011 = 0.1095?

c)

From Z score table

P( Z < -0.74 or Z > 1.38) = P( Z < -0.74) + P( Z > 1.38) = 0.2296 +0.0838 = 0.3134??

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