841 Math Blog

Mean is when you take all the number in a math sentence and add them up.

eg. 1,2,3,4,5,6,7,8 =36


Median is when you find the middle number in a set of data.
middle
eg. 1,2,3,4,5,6,7,8


Mode is when you find the most common number in a set of data

eg. 1,2,3,4,5,6,6,7,7,7,8 the most common number is 7

Mean:
The sum of all digits divided by the amount of numbers in the data set.

Median:
The middle number in a set of data.

Mode:
The most frequently used number in a set of data.

Range:
The difference between the smallest and largest number in a set of data.

MEAN

The mean may often be confused with the median or mode. The mean is the arithmetic average of a set of values, or distribution; however, for skewed distributions, the mean is not necessarily the same as the middle value (median), or the most likely (mode). For example, mean income is skewed upwards by a small number of people with very large incomes, so that the majority have an income lower than the mean. By contrast, the median income is the level at which half the population is below and half is above. The mode income is the most likely income, and favors the larger number of people with lower incomes. The median or mode are often more intuitive measures of such data.


MEDIAN

In probability theory and statistics, a median is described as the number separating the higher half of a sample, a population, or a probability distribution, from the lower half. The median of a finite list of numbers can be found by arranging all the observations from lowest value to highest value and picking the middle one. If there is an even number of observations, the median is not unique, so one often takes the mean of the two middle values. At most half the population have values less than the median and at most half have values greater than the median. If both groups contain less than half the population, then some of the population is exactly equal to the median. For example, if a < b < c, then the median of the list {a, b, c} is b.


MODE

In a set of data, the mode is the most frequently observed data value. There may be no mode if no value appears more than any other. There may also be two modes (bimodal), three modes (trimodal), or four or more modes (multi modal). In the case of grouped frequency distributions, the modal class is the class with the largest frequency.As a set of data can have more than one mode, the mode does not necessarily indicate the centre of a data set. The mode will be close to the mean and median if the data have a normal or near-normal distribution. In fact, if the distribution is symmetrical and uni modal, then the mean, the median and the mode may have the same value.

Mean

Arrange Data in Ascending numerical order.The means is when you get the sum of all data.








Meadian











Arrange data in ascending numerical order.The Meadian is the number that is in the middle.There CAN be to middle numbers and if that case then you must find the middle in THOSE 2 numbers.









Mode




Arrange the data in ascending numerical order.The Mode is the number that appears most often.











Range



Arrange the data in ascending numerical order.The range is when you subtract the smallest piece of data to the largest.









PROBABILITY
A measure of the likelyhood event

This is my MMM video! Enjoy!!!

Mean: the sum of all data divided by the number of data





Median:in a list of numbers the median is the central dividing number separating the higher and lower numbers








Mode:the most frequently occurring number

Median : The smallest number such that at least half the numbers in the list are no greater than it. If the list has an odd number of entries, the median is the middle entry in the list after sorting the list into ascending order. Example : (1,2,(3),4,5) 3 is the median .

• arrange the data in ascending numerical order
• add all the data together, then divide the sum by the number of data
  

Mean: The sum of a set of values divided by the number of values in the set of data.

Here is a video that explains mmm

Mean - The sum of all numbers divided by the number of data.

Median - The middle of the set of numbers in ascending numerical order.

Mode - The most common number in a set of numbers in ascending numerical order.

Range - The biggest number subtracted by the smallest number in a set of data in ascending
numerical order.

Here's a video for measures of central tendency

Mean: The sum of a set of data divided by the number of data. The average.

Mean-All the data added up together divided by the number of data









Median-The middle number in the data



Mode-The most common number in the data



Here is a Video that explains MMM

Mean:In a data set, the sum of all the data points, divided by the number of data points; average.

Median:The middle number in a data set when the data are put in order; a type of average.





Mode:A type of average; the number (or numbers) that occurs most frequently in a set of data.

Range:In statistics, the difference between the largest and the smallest numbers in a data set.

Here's a video that explains the mean, median, mode, and range :