The average is the sum of all of the numbers in a data set DIVIDED by the number of numbers in the data set. Therefore, given the following set of numbers 5 5 7 8 10 The average would be (5 + 5 + 7 + 8 + 10) / 5 which will give you 7. so the average is 7
The variance is 27.0
A set of data has no mode when there is no number that occurs more frequently than another. The data set: 1, 2, 5, 5, 6 has a mode of 5. The data set: 1, 2, 3 has no mode.
The mean is all of the numbers in the set of data added up then divided by how many numbers are in the set of data. It is also called the average. The range is the highest number in a set subtracted by the smallest. mean: Range: 2,4,10,and 5 2,4,10 and 4 2+4+10+4=20 10-4=6 20/4=5
A bi-modal data set is a data set that has two modes. In the data set 1, 2, 2, 3, 4, 4, 5 the mode is 2 AND 4. So it is a bi-modal data set. Hope that helps.
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Sum(X) = 37 Sum(X2) = 289 Var(X) = Sum(X2) - sum(X)2/n = 289 - 37*37/5 = 15.20
mean = 5, variance = 5
5
Subtract the smallest number in the data set from the largest number in the data set. eg, the range of {3, 1, 5, 6, 6 ,8, 10, 5, 8} is 10 - 1 = 9
The average is the sum of all of the numbers in a data set DIVIDED by the number of numbers in the data set. Therefore, given the following set of numbers 5 5 7 8 10 The average would be (5 + 5 + 7 + 8 + 10) / 5 which will give you 7. so the average is 7
In any given set, the mean is the average, which is the total of the numbers divided by how many numbers there are. Ex. (10, 17, 20, 45, 68) 68 + 45 + 20 + 17 + 10 = 160 There are 5 numbers in this set. 160/5 = 32 The mean is 32.
The variance is 27.0
A set of data has no mode when there is no number that occurs more frequently than another. The data set: 1, 2, 5, 5, 6 has a mode of 5. The data set: 1, 2, 3 has no mode.
Use the merge command. For example: Data set one ID A B 10 1 2 20 3 4 30 5 6 Data set two ID C 10 0 20 5 30 7 data three; merge one two; by id; run; Output: ID A B C 10 1 2 0 20 3 4 5 30 5 6 7
A good way to assess what is a reasonable interval when graphing data is to see if there are any common factors in the data set. In this case 5, 10, 30, 40 and 20 are all clearly divisible by 5. Therefore, 5 would be a reasonable interval to use when graphing the data.
The range of a set of data is the difference between the largest and smallest, ie subtract the smallest from the largest. For example:Find the range of the data {10, 20, 50, 17, 89, 24, 5, 56}The largest is 89 and the smallest is 5, so the range is 89 - 5 = 84.