Characteristics
The shape of the graph of a normal distribution is this.
What is Bell Curve
A normal distribution has a mean of 8 and a standard deviation of 2. The value that is 2 positive standard deviations away from the mean is this
What is 12
What is standard deviation?
What is the distance of a set of data points from the mean
A data set with a standard deviation of 9 has a variance of what?
What is v = 81
A particular new car model is available with 5 choices of color, 3 choices of transmission, 4 types of interior, and 2 types of engine. How many different variations of this model car are possible
What is 120
This measure of central tendency of a normal distribution represents the highest point on the curve
What is the Mean
A normal distribution has a mean of 15 and a standard deviation of 3. The value that is 3 negative standard deviations away from the mean is this
What is 6
What is the mean and standard deviation of the following set of scores: 8, 8, 8, 8, 8, 8
What is mean = 8 s = 0
Test score data: Mean = 80 s = 5 v = 25 Write a sentence explaining what this information tells you about class performance on an exam
answers will vary
There are five members of the Math Club. In how many ways can the positions of officers, a president and a treasurer, be chosen?
What is 20
These percentages roughly represent the percent of the data values that fall within one, two, and three standard deviations from the mean of a normal distribution.
What is 68% 95% 99.7%
A normal distribution has a mean of 10 and a standard deviation of 1. The percentage of data values that fall between the values of 8 and 12 is this
What is 95%
Set A: 3, 4, 5, 6, 2, 3, 4 Set B: 3, 6, 8, 9, 1, 9, 1 Which data set would have the smaller standard deviation? How can you tell? (no calculations needed)
What is Set A because the numbers are closer together
Find the variance of the given data set: 4, 3, 2, 7, 8
What is s = 3 v = 9
There are five members of the math club. In how many ways can the two person Social Committee be chosen?
What is 10
The curve is this with respect to its mean
What is Symmetric
A normal distribution has a mean of 24 and a standard deviation of 6. 68% of the values of this distribution fall between what two data values?
What is 18 and 30
What is the mean and standard deviation for the following set of numbers? 4, 8, 6, 10, 16, 14, 12, 18
What is Mean = 11 Standard Deviation = 4.58
What is the variance for the following set of numbers? 23, 10, 11, 24, 32, 15, 13, 16
What is V = 50.98
How many different 12-person juries (6 male and 6 female) can be chosen from a pool of 12 males and 9 females?
What is 77616
The total area under the curve of a normal distribution is this.
What is One or 100%
A normal distribution has a mean of 100 and a standard deviation of 10. The percentage of data values that fall between the values of 70 and 90 is this
What is 15.85
What is the mean and standard deviation for the following set of numbers? 23, 10, 11, 24, 32, 15, 13, 16
What is mean =18 s = 7.14
Explain the difference between standard deviation and variance
What is Standard Deviation is how far data is from the mean, while variance is the overall spread of the data set
How many ways can you deal a five card hand from a standard deck if order doesn't matter?
What is 2,598,960