Suppose a normal distribution is shown with a mean of and a standard deviation of . If the shaded area to the left of the indicated point is , what is the z-score corresponding to the indicated point?
6. Normal Distribution and Continuous Random Variables
Probabilities & Z-Scores w/ Graphing Calculator Bonus
- Multiple Choice
- Multiple Choice
Given a normal distribution with mean = and standard deviation = , what are the z-scores that correspond to the boundaries of the middle 95% of the distribution as shown in a standard normal curve graph?
- Multiple Choice
Suppose a normal distribution is shown on a graph with the mean marked at the center. If a point is marked one standard deviation above the mean, which value best represents the -score of that point?
- Multiple Choice
Converting observations into -scores is also called standardizing the observations.
- Multiple Choice
Which of the following statements is true about a z-score?
1views - Multiple Choice
Using a standard normal distribution, what is the -score such that the area to the left of is ?
- Multiple Choice
Sketch a graph to represent the probability, then use a calculator to find it.
1views - Multiple Choice
Use a calculator to find the z–scores of the region shown in the standard normal distribution below.
A = 0.800