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02.11.2020 •
Mathematics
Consider discretizing a continuous attribute whose values are listed below: 3, 4, 5, 10, 21, 32, 43, 44, 46, 52, 59, 67 Using equal-width partitioning and four bins, how many values are there in the first bin (the bin with small values)? A. 1 B. 2 C. 3 D. 4 E. 5 F. 6
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Ответ:
D.) 4
Step-by-step explanation:
Given the following values :
3, 4, 5, 10, 21, 32, 43, 44, 46, 52, 59, 67
Binning means grouping data values into intervals.
Using equal bin width and number of bins equal 4
Evaluating the data:
Lowest value = 3; highest = 67
To obtain a 4 bins with equal width;
A bin size of 20 should be suitable and will accommodate all the listed values :
Bins frequency
1 - 20 4
21 - 40 2
41 - 60 5
61 - 80 1
Number of values in first bin = 4
Ответ:
There are 4 values in the first bin
The data entries are given as:
3, 4, 5, 10, 21, 32, 43, 44, 46, 52, 59, 67
Start by calculating the range:
Divide the range by 4 (i.e. the number of bins) to calculate the class width
So, the classes and their frequencies are:
3 - 19 -> 420 - 36 -> 237 -53 -> 454 - 70 -> 2The first bin (i.e. class 3 to 19) has a frequency of 4.
Hence, there are 4 values in the first bin
Read more about class width and intervals at:
link
Ответ:
answer:
a decrease of 32
step-by-step explanation:
160 - 20% = 32