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Are you Normal?
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Mystery
100
The value the has p% of the data less than or equal to it.
What is a percentile?
100
A function that represents the distribution of many random variables as a symmetrical bell-shaped graph.
What is the normal distribution?
100
The number of standard deviations from the mean value of the reference population.
What is a z-score?
100
A way to work backwards from a known probability to find an x-value.
What is the inverse normal distribution?
100
The total area under the normal curve.
What is 1?
200
Two measurements that are used to compare relative positions of points within a data set or between data sets.
What are percentiles and z-scores?
200
Use this condition to check if the distribution is symmetric and unimodal.
What is the nearly normal condition?
200
The formula for a z-score.
What is :max_bytes(150000):strip_icc()/zscore-56a8fa785f9b58b7d0f6e87b.GIF)
?
200
The 90th percentile for a normal distribution with a mean of 70 and a standard deviation of 4.5.
What is 75.767?
200
Z< ___ is considered below the mean.
What is 0?
300
Jaime is 180 cm tall. The percent of the heights that are less than or equal to Jaime.
What is 93.33%?
300
Another name for the 68-95-99.7 Rule.
What is the Empirical Rule?
300
The standard deviation and mean for a standard normal model.
What are 1 and 0?
300
The time spent by a college student at work a week is normally distributed with a mean of 20 hours and a standard deviation of 5 hours. The amount of time the bottom 20% of students work.
What is less than 15.8 hours?
300
These three things are equal in a normal distribution.
What are the mean, median and mode?
400
Parker is 170 cm tall. The estimation and interpretation of Parker’s percentile.
What is "Parker is at the 56.67th percentile. 56. 67% of heights in the class are less than or equal to her"?
400
A large group of students took a test in statistics and the final grades have a mean of 76 and a standard deviation of 8. The proportion of students that scored above a 92.
What is 0.02275 (or 0.025 using the empirical rule?
400
The z-score of a value of 27, given a set mean of 24, and a standard deviation of 2.
What is 1.5?
400
The time spent by a college student at work a week is normally distributed with a mean of 20 hours and a standard deviation of 5 hours. The amount of time the top 20% of students work.
What is more than 24.2 hours?
400
N(μ,σ)
What is the name of a normal distribution?
500
The interpretation of "A person with an IQ of 120 is at the 91st percentile".
What is their IQ is higher than 91 percent of other scores?
500
A large group of students took a test in Statistics and the final grades have a mean of 70 and a standard deviation of 7. The proportion of students that scored below a 60.
What is 0.07656?
500
Another name for a z-score.
What is a standard score?
500
The time spent by a college student at work a week is normally distributed with a mean of 20 hours and a standard deviation of 5 hours. The amount of time the middle 40% of students work.
What is between 17.4 and 22.6 hours?
500
The normal curve never does this.
What is never touches the x-axis?