39
There are 15 values.
15
Ask the math teacher
To analyse data, it is best to first order the data from smallest values to largest values. In this case, that would be: 85, 93, 95, 96, 98, 99, 100, 100. The range is simply the largest number less the smallest. So in this case 100-85, which comes out at 15. Thus the range of the data set in the question is 15.
Whatever you like. The median value for each of the following three sets is 10. For the set {1, 9, 11, 12}. the mean is 8.25, smaller than the median. For the set {1, 9, 15, 15}. the mean is 10, the same as the median. For the set {1, 9, 15, 16}. the mean is 10.25, larger than the median.
There are 15 values.
The mean = The sum of all the values ÷ The number of values. 18 + 15 + 22 + 18 + 25 + 19 + 23 = 140 : Number of values = 7 Mean = 140 ÷ 7 = 20
15
The mean deviation or absolute mean deviation is the sum of the differences between data values and the mean, divided by the count. In this case the MAD is 6.
6.
a. 39 b. 47 c. 49 d. 37
Ask the math teacher
Remember what each of these terms represent. Mean = Mathematical Average Median = Middle value (exactly half of values are above and below) Mode = Most frequent value There are multiple possible answers, however here is one: 13, 13, 15, 15, 19 The mean is: (13 + 13 + 15 + 15 + 19)/5 = 75/5 = 15 The middle value (the median) is 15. Another way to say this is that, if we were to list all the values as shown above there are two before 15 and two after 15; therefore the median is 15. In this data set the value 13 occurs twice, 15 occurs twice, and 19 occurs once. Both 13 and 15 occur the most frequently therefore they are both the mode.
For any data set, the average would be sum of all the values , divided by the number of values ... Hence the average of 1,2,3,4,5 would be : 1+2+3+4+5 / 5 , or 15 / 5 = 3
15
Well information is processed data. Information has more meaning than data. For example 0945 is data. In this state it doesn't mean much. But if you process it this data can mean for example a date: the ninth month of 1945 or it can mean 15 to 10.
To analyse data, it is best to first order the data from smallest values to largest values. In this case, that would be: 85, 93, 95, 96, 98, 99, 100, 100. The range is simply the largest number less the smallest. So in this case 100-85, which comes out at 15. Thus the range of the data set in the question is 15.