11
what is the mode of the following data 18, 17, 12, 14, 8, 21, 10, 11, 19, 20, 10, 5, 17, 12, 10, 20
10 appears more times than any other number, so it is the mode.
All of the numbers appear once and as a mode is the most commonly occurring number, there is no mode.
- 4
One possibility: 5, 6, 7, 7, 7, 12, 12, 13, 14, 15, 16, 18
Let write the data in an increasing order: p q r s t.Since the median is 14, then r = 14, and we have: p q 14 s t.Since the mode is 11, then p = q = 11.Since the range is 9, then t - p = 9, t - 11 = 9, and t = 20.So, we have: 11 11 14 s 20.Since the mean is 25, we have:(11 + 11 + 14 + s + 20)/5 = 25(56 + s)/5 = 25 multiply by 5 to both sides56 + s = 125 subtract 56 to both sidess = 69So the data set is: 11 11 14 69 20
The variance of this data set is 22.611
11
what is the mode of the following data 18, 17, 12, 14, 8, 21, 10, 11, 19, 20, 10, 5, 17, 12, 10, 20
The mode is the number that appears most often in a given set of numbers, therefore it is 14.
Mean is an average of a list of numbers. Median is the middle of a list of numbers. Mode is the most common number in a list of numbers. Ex. 14 17 23 48 54, the Median would be 23, the mean would be 31.2, and the mode would be undefined. The mean, median, and mode are all measures of center for a data set. A measure of center is one way to get a single result that represents all of your data for a definitive answer to a math or science question. Mode is the number that shows up most in the data set. Mean (also known as average) is found after all the numbers in a data set are added together, and that sum is divided by how many numbers in the data set there are. Median is the number in the exact middle of the data set once the data set is put in the order of least to greatest value. If the number of numbers in the data set is even, and there are two medians, then you would find the mean of the median to get your true median. Here is an example. data set: 0,0,3, 4, 5,5,5, 66, 78, 80, 90, 99,99,99,99, 106 mode:99 median: 72 mean:48
mode
Mean = (11 + 14 + 20)/3 = 45/3 = 15 Median = 14 Mode = 11, 14 and 20 (these values appear once, others do not appear even once!)
With just one data point, the mean, median and mode are all the same as the data point itself. In this case, 14.
Mean = 19.8 -----------[(48 + 11 + 15+14+11) / 5]Median = 14 (middle value of the list)Mode = 11 (most frrequent number)Range = 37 (48 - 11, highest - lowest number)
10 appears more times than any other number, so it is the mode.
14