10 Data Mining Language: R Given the following data table with a missing value, what is the most suitable value you can use to fill the missing value? ID Age Class A123 20 Y A345 25 Y B654 ? Y C654 45 S D987 50 S
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.
10
Data Mining
Language: R
Given the following data table with a missing value, what is the most suitable value you can use to fill the missing value?
|
ID |
Age |
Class |
|
A123 |
20 |
Y |
|
A345 |
25 |
Y |
|
B654 |
? |
Y |
|
C654 |
45 |
S |
|
D987 |
50 |
S |
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