# What is the variance with sample data set 9 14 19 16 8 6 17 11 18?

The variance of this data set is 22.611

### What is the mode for data set 11 12 13?

The mode is the data set element(s) that is(are) repeated the most. If every data set element occurs the same number of times, there is no mode. As there is only one occurrence of each data set element in {11, 12, 13} there is no mode. If your data set read {11, 12, 12, 13, 13, 12} your mode would be 12. If your data set read {11, 12, 12, 13, 13} your modes would…

### How do you find the variance 415 10 8 33 25 36 66 63 50 64 49 40?

First mean is calculated. Then calculate deviations from the mean. Then the deviations are squared. Then the squared deviations are summed up. Finally this sum is divided by number of items for which the variance is being calculated. For a population, it is by the number of values, in this case 12. If it is a sample, then we divide by one less, which is 11, For these figures, the variance for the population is…

### What is the mean of this data 4 12 23 11 5?

Mean is a fancy word for "Average". To calculate an average of a set of numbers you must add together the set of numbers and divide by the amount of numbers in the set. Let's solve your problem. 4, 12, 23, 11, 5. Remember the first step is to add all the numbers together. 4 + 12 + 23 + 11 + 5 = 55. Now we need to do step two - which is…

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### What is an example of a mode in mathematics?

Say this is your set of data: 22, 33, 33, 12, 33, 45, 65, and 77. ^ ^ ^ 33 occurs 3 times, which is more than any other number in this set, making it the mode. Say this is your set of data: 33, 55, 55, 33, 12, 115, 11, 155 ^ ^ ^ ^ Both 33 and 55 occur twice, which is more than any of the other numbers, meaning that the two…

### What is the sample space for choosing a letter from the word probability?

11 * * * * * No, on two counts. The sample space is the possible outcomes of the experiment, not the NUMBER of possible outcomes. And, as far as this experiment is concerned, there is no way to distinguish between the two occurrences of b and i. So there are, in fact, only 9 possible outcomes. Two of these outcomes have a higher probability but that is a different matter. The sample space is…

### What is the purpose of finding the standard deviation of a data set?

The purpose of obtaining the standard deviation is to measure the dispersion data has from the mean. Data sets can be widely dispersed, or narrowly dispersed. The standard deviation measures the degree of dispersion. Each standard deviation has a percentage probability that a single datum will fall within that distance from the mean. One standard deviation of a normal distribution contains 66.67% of all data in a particular data set. Therefore, any single datum in…