Since there are five numbers in that group, the
mean (average) of the group is 1/5 of their sum.
23/20 = 13/20
There are an infinite number of sets-of-4 that all have a mean of 12. Here are a few of them : 12, 12, 12, and 12 10, 11, 12, and 15 5, 10, 15, and 18 5, 7, 13, and 23 -12, 10, 20, and 30 1, 2, 3, and 42
13/20 = 23/20
4/20 + 2/13 = 92/260 or 23/65
It is: 15
30.666
15.4
23/20 = 13/20
The mean is the average. To get an average age of three, 3 of her pets would have to 4 years old and the other 3 would be 2 years old. In ten years she would have 3 pets that are 14 and three that are 12, therefore the mean age of them would be= [(14*3)+ (12*3)]/6= 13 So in following the same concept, 20 years the mean age of her pets would be 23.
13 + 23 + 12 + 7 = 55
There are an infinite number of sets-of-4 that all have a mean of 12. Here are a few of them : 12, 12, 12, and 12 10, 11, 12, and 15 5, 10, 15, and 18 5, 7, 13, and 23 -12, 10, 20, and 30 1, 2, 3, and 42
You find the mean by adding the numbers and dividing by 5 so the mean is 15.4
To find the mode or modal value requires you to put the numbers you are given in order.Look at these numbers:3, 7, 5, 13, 20, 23, 39, 23, 40, 23, 14, 12, 56, 23, 29In order these numbers are:3, 5, 7, 12, 13, 14, 20, 23, 23, 23, 23, 29, 39, 40, 56This makes it easy to see which numbers appear the most.In this case the mode or modal value is 23.
13/20 = 23/20
7/8 + 1/12 = 23/24=7/8 +1/12= 21/24 + 2/24= 23/24
Twice ... 1916 (23-12) and 1917 (24-13).
23-11 = 12 13 * 12 = 156