Mean = (sum of the samples) divided by (number of samples) = (8 + 12 + 15 + 11) / 4 = 46/4 = 11.5
The mean is 8 because: (1+6+10+11+12)/5=8 We know that the Arithmetic Mean of a data set = (sum of all the items)/ number of items. =(1+6+10+11+12)/5 =(40)/5 =8. The Arithmetic Mean of 1, 6, 10, 11, and 12 is 8.
9.75
To find the mean of the numbers 20, 12, 20, 15, 8, 20, 12, and 10, first add them together: 20 + 12 + 20 + 15 + 8 + 20 + 12 + 10 = 117. Then, divide the total by the number of values, which is 8: 117 ÷ 8 = 14.625. Therefore, the mean is 14.625.
-1
10
15
The mean absolute deviation is 2
35
The mean is the sum of the values divided by the number of values. In this case (12+10+19+8+2+15+1+20+6+11+3+7)/12 = 9.5.
115/10 = 11.5
It is (8+6+11+12+13)/5 = 10
12
15 hours. There are 12 hours between 8:00am and 8:00pm and 3 hours between 8:00pm and 11:00pm. 12 + 3 = 15
The mean is 8 because: (1+6+10+11+12)/5=8 We know that the Arithmetic Mean of a data set = (sum of all the items)/ number of items. =(1+6+10+11+12)/5 =(40)/5 =8. The Arithmetic Mean of 1, 6, 10, 11, and 12 is 8.
9.75
Mean = 12 Median = 9 Range = 12
There is only one set of data so there is only one mean. Therefore there is no standard error of the mean.