WorksheetsQuizziz 2
Total questions: 10
Worksheet time: 5mins
It is also called as the "Bell Curve". It provides a graphical representation of statistical values that are needed in describing the characteristics of population as well as in making decisions.
Normal Distribution
Discrete Probability Distribution
Continuous Probability Distribution
Histogram
The following are the characteristics of a normal curve EXCEPT:
The distribution curve is a bell shaped
The curve is symmetrical about its center
The mean and standard deviation coincide at the center
The curve is asymptotic to the base line
It is a normal probability distribution that has a mean of 0 and a standard deviation of 1.
Normal Distribution
Standard Normal Distribution
Discrete Probability Distribution
Continuous Probability Distribution
It is also called as "68-95-99.7 rule".
Empirical Rule
Addition Rule
Multiplication Rule
Mutually Exclusive Event
What is the area of a standard normal distribution with a given standard deviation of 2?
50%
65%
95%
99.7%
What will happen to a probability distribution if the mean score is low?
The graph of a distribution is skewed to the left
The graph of a distribution is skewed to the right
The graph is normally distributed
The graph of a distribution is narrow
In the Statistics examination, the mean grade is 78 and the standard deviation is 10. Find the z-score of a student who has a grade of 93.
z = 1.2
z = 1.3
z = 1.4
z = 1.5
Find the grade of a student if he obtained a z-score of 0.6 with the mean grade of 78 and a standard deviation of 10.
82
83
84
85
If X=93 , μ=85 , and σ=5 , what is the z-score?
1.5
1.6
1.7
1.8
What can you describe about the graph of the distribution?
The graph is skewed to the left
The graph has an area of 65%
The graph has 3 standard deviations
The graph has an area of 95%
