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What does averged mean?
An average is a sort of middle number.There are three kinds of mathematical average and the unqualified word "average" can refer to any of the three:meanThis is the average that most people would understand by the word "average". It is the sum of the items divided by the number of items.As such it represents the value each of the items would have if they were all the same value.medianIf the items are sorted into order, the median is the value in the middle. (If there are an even number of items, then the mean average of the middle two items). This is the only average of which it can always be said that half the values are above it and half the values are below it.modeThis is the item, or items, that appears the most often or frequently. If all the items have different values then there is no mode average.This is the only average that does not need the items to be numbers, for example, a survey could look at people's favourite chocolate bar - the mode average would indicate that bar which is preferred by most people.
What is the median of 31 32 32 33 34 35 35 35?
The items are already in order, so you need to look for the middle value. In this case, with an even number (8) of items, you find the average of the middle two values:(33+34)/2 = 67/2 = 33.5
How do you work out the median of a group?
Sort the data items into numerical order (ascending is usual, but descending can be used). The median is the number in the middle: If there are an odd number of items in the dataset, then the median is the middle number, which is the (n+1)/2th item (where n is the number of items in the dataset). Otherwise there is an even number of items in the dataset and the median is the mean of the two in the middle. These items are the n/2th and the (n/2 + 1)th items.
How do you find the median number in maths?
The median is the 'middle' of a set of numbers. Sort the list and find the middle number. If the set contains an even number of items, then take the middle two numbers and take the average of those two.
What is the median of 20 and 40?
When there is an even number of items in the data set the median is the mean average of the middle two. The middle two are the two items themselves, namely 20 and 40, so the median is (20 + 40)/2 = 30.
What does what is the median mean?
The median is one of the averages (Mean, median and mode). which is such that exactly half the data items are greater than it and half are less than it; it is is found by listing all the data items in numerical (number line) order and then: * if there is an odd number of data items it is the one in the middle; * otherwise there are an even number of data items and it is the mean average of the middle two. The mean average is calculated by adding all the data items together and dividing by the number of items. The mean average is the average most people will think of if the unqualified word "average" is used. There are occasions when the mean and median averages can differ significantly - the mean is susceptible to extremes in the data set; if someone wants to make a point, they will often use one as an unqualified "average" (without specifying which), where the other may be very revealing.
What are the mean and median measures of?
The mean is the average value of the set. It is computed by adding all of the elements of the set, and then dividing that sum by the number of the items in the set.The median is the central, or middle, value in the set. It is computed by sorting the set and picking out the middle item or, if the number of items in the set is even, then by computing the mean of the middle two items.Not asked, but answered for completeness...The mode is the most probable value of the set. It is computed by plotting a distribution of the frequency of occurrence of each value in the set, and selecting the value, or values, with the highest occurrence in the set.
What is the median of 2 20 19 15 11 9 7 1?
sorted: 1 2 7 9 11 15 19 20 number of items: 8 middle items: 9 and 11 average of middle items, or median: (9+11)/2 = 10
What happens when 2 numbers are the median?
When there are an even number of data items, there are two numbers in the middle.In this case the median is the mean average of the middle two numbers.
What is the median number between 16 and 25?
The median of a set of numbers is the middle number when the numbers are listed in numerical order. When there are an even number of data items in the set, then the median is the mean average of the middle two numbers. In the set {16, 25} there are two data items, so the median is the mean average of the middle two (which for a set of 2 is both the numbers) → median = (16 + 25) ÷ 2 = 20.5
What is the median of 95 95 98 98 98 101 102 103 104 104?
The median average of a set of numbers is the middle number when the numbers are listed in order. If there is an even number of numbers then the median is the mean average of the middle two. To find which is the median value add 1 to the number of items and divide by 2. If this is a whole number that is the median; otherwise the median is the mean average of the numbers that are at the whole part of this result and the next one: The dataset {95, 95, 98, 98, 98, 101, 102, 103, 104, 104} has 10 items, so the median is the mean average of the middle two. To find which is/are the median value::(10 + 1) /2 = 11/2 = 5.5 → the median is the mean average of the 5th and 6th items. → median = (98 + 101) ÷ 2 = 95.5
Is median always sometimes or never in a data set?
If the sample has an odd number of items in it then the median will definitely be in the sample at least once because the median is value of the set of data items whose value(s) are in the middle of the sample when the sample is sorted from smallest to largest. If the sample has an even number of items in it then if the middle items are different the median will be their average, and it will differ from all of the items in the data set. I could continue in this vein but already you can see that the median sometimes occurs in a data set but not always.
