when there are extreme values in the data
Arrange the data in increasing order and count the number of data points = N. Find the integer K = N/2 or (N+1)/2. The Kth number in the ordered set is the median. Now consider only the numbers from the smallest to the median and find the median of this subset. This is the lower quartile = Q1. Then consider only the numbers from the original median to the largest. Find the median of this subset. It is the upper quartile = Q3. Then IQR = Q3 - Q1
The second quartile, also known as the median, divides a data set into two equal halves. To find it, first arrange the data in ascending order. If the number of data points is odd, the median is the middle value; if it's even, the median is the average of the two middle values.
Let the data set be 3,4,5,6,7,8. First put the data in rank order ; already done!!!! To find the MEDIAN , we tak the two middle numbers, '5' & '6' in this case. Then (5 + 6) / 2 = 11/2 = 5.5 5.5 is the Median.
134.5 pounds = 61 kilograms.
A quartile is a given section in a range of data. To find the quartile, you must first find the median. Then find the "median of the median", using these to separate your data into sections, giving you a total of four sections of data.
You can estimate the median and the mean.
The median is the middle number when the numbers are arranged in numerical order. In this instance, the numbers are 30, 48, and 52, therefore the median is 48 pounds, the second number along.The range is the difference between the lowest and highest number. In this instance, the range is equal to 52 - 30 = 22 pounds.
Can the median and mode be used to describe both categorical data and numerical data
To find the median using a stem-and-leaf plot, first, organize the data by identifying the stems (the leading digits) and the leaves (the trailing digits). Count the total number of data points to determine the position of the median. If the number of data points is odd, the median is the middle value; if it's even, the median is the average of the two middle values. Locate these values in the plot to find the median.
when there are extreme values in the data
Mean, median and mode are ways to find averages. The mode is the most common answer in a set of data. The median the number that is in the middle when the numbers are put in order. The mean is the statical average.
To find the mean, you all them all up and divide by how many ever there are. To find the median, you put them in order and the middle one is the median. If there are an even number of data, you take the two in the middle, add them together, then divide by 2.
The median of a data set is the number that is literally in the middle. For example: The median of the number set 1,1,3,4,7, is 3 because it is in the physical middle of the set of numbers. Note: To find a median, the numbers MUST be in written in order the median of 2,6,3, is not 6. You must rearrange them like: 2,3,6 and we can see 3 is the median
Arrange the data in increasing order and count the number of data points = N. Find the integer K = N/2 or (N+1)/2. The Kth number in the ordered set is the median. Now consider only the numbers from the smallest to the median and find the median of this subset. This is the lower quartile = Q1. Then consider only the numbers from the original median to the largest. Find the median of this subset. It is the upper quartile = Q3. Then IQR = Q3 - Q1
You can estimate them both.
You can estimate them both.