Standard normal distribution used to compute probabilities
Not what you're looking for?
1. Given that z is a standard normal random variable, compute the following probabilities.
a. P(-1≤z≤0)
b. P(-1.5≤z≤0)
c. P(-2<z<0)
d. P(-2.5≤z≤0)
e. P(-3≤z≤0)
2. Given that z is a standard normal random variable, compute the following probabilities.
a. P(0≤z≤.83)
b. P(-1.57≤z≤0)
c. P(z>44)
d. P(z≥-.23)
e. P(z<1.20)
f. P(z≤-.71)
3. Given that z is a standard normal random variable, compute the following probabilities.
a. P(-1.98≤z≤0)
b. P(.52≤z≤1.22)
c. P(-1.75≤z≤-1.04)
4. Given that z is the standard normal random variable, find z for each situation.
a. The area between 0 and z is .4750b. The area between 0 and z is .2291
c. The area to the right of z is .1314
d. The area to the left of z is.6700
5. Given that z is a standard normal random variable, find z for each situation.
a. The area to the left of z is.2119
b. The area between -z and z is .9030
c. The area between -z and z is .2050
d. The area to the left of z is .9948
e. The area to the right of z is.6915
6. Given that z is a standard normal random variable, find z for each situation.
a. The area to the right of z is. 01
b. The area to the right of z is .025
c. The area to the right of z is.05
d. The area to the right of z is .10
Purchase this Solution
Solution Summary
The solution computes probabilities given a standard normal random variable.
Purchase this Solution
Free BrainMass Quizzes
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.