Histogram of windspeed 30 40 50 60 후얼으0 6 4 2 0 Kouanbaj
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
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The maximum annual windspeeds (in meters per
yet
vered
second) in Hong Kong over a 45-year period is
displayed in a histogram below. (Source: Renewable
Energy Journal, 2007)
ts out of
lag
Histogram of windspeed
tion
14
12
30
40
50
60
windspeed
Which of the following statistics is most appropriate
for measuring the variation (spread) in the
distribution shown of maximum annual windspeeds in
Hong Kong?
Select one:
a. IQR
b. Median
C. Standard deviation
d. Range
frequency](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F72a66d9f-f83b-4d06-ba21-239b9e559cfa%2Fc2309b8a-4e9f-4d86-9bff-6f31c9335138%2F08sn0es_processed.jpeg&w=3840&q=75)
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The Inter Quartile Range is the difference between 75th and 25th percentiles,
or between upper and lower quartiles given by :
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