The mean, median and mode is 2 of the given data from the dot plot.
Given, the table is :
Number of brothers and sisters 0,0,1,1,1,2,2,2,2,2,3,3,3,4,4
First the mean
Mean = average which = sum of data points / # of data points
Sum of data points = 0+0+1+1+1+2+2+2+2+2+3+3+3+4+4 = 30
# of data points ( count the number of dots ) = 15
So average (mean) = 30/15
= 2
Next lets find the median.
The median is the middle value.
We can find the median by listing the values and then meeting at the middle of the values
So we have 0,0,1,1,1,2,2,2,2,2,3,3,3,4,4
the list is odd, so we use median = n+1/2
= 15+1/2
= 16/2
= 8th term
= 2
Mode is simply the value that appears most.
The value that appears the most is 2 as it appears five times which is the most out of any other value.
Hence we get the mean, median and mode.
Learn more about Statistics here:
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