Standard Normal Probabilities

Find the value for 
P(Z > 1.78)

• 0.0376

• 0.0375

• 0.0446

• 0.2420

Find the value for 
P(Z < -0.39)

• 0.3498

• 0.3483

• 0.3501

• 0.6502

Find the value for
P(Z > 2.46)

• 0.00714

• 0.99305

• 0.00695

• 0.99286

Find the value for
P( -2.01 < Z < 0.88)

• 0.7884

• 0.2116

• 0.0222

• 0.1984

What is the probability that a score is under (left of) -.37?

• .6443

• .3974

• .3557

• .3156

The ages of the population of people living in Meru area in Ipoh are Normally distributed with mean 43 and standard deviation 14

The town has a population of 5,000.

How many would you expect to be aged between 22 and 57?

You can use this Standard Normal Distribution curve:

• 1750

• 3860

• 3870

• 4330

What is the area under the curve between z = 0 and z = 1.45?

• .9265

• .4265

• .4500

• .5000

What is the probability that the absolute value of z is less than .97?

• .6680

• .6156

• .6212

• .8340

Which best describes the shaded part of the standard normal distribution graph?

• All data that is one or higher

• All data that is between 1 and 3

• All data that is one or more standard deviations above the mean

• All data that is above the mean

What is the probability of a z-score being greater than 2 in a standard normal distribution?

• 0.0228

• 0.9772

• 0.5

• 0.95