Tuesday, December 29, 2015

Saxon Alg 1 3rd. ed. Lesson 45 pg. 181


This lesson is pretty simple since it is really a review of what we have learned through out the Saxon series. The examples given are great!  Median is the middle just like in the street medians; Mean if the average or add all the numbers and divide by how many numbers there are to begin with; mode is what is seen most often like what is in fashion.  Range was not given an example; however, it could be thought of as a piece of land or property.  So if someone owns some land and it begins on 4th street and extends to 16th street then you subtract the numbers and find that he owns 12 blocks of land! WOW!
 
  The only other thing taught was how to find a missing number when you have a mean and all the other numbers.  So you use some simple algebra here by adding all the numbers and then subtracting from the mean to find that missing number.

   One more thing is to not forget is that if there is no middle number (median) because you have an even amount of numbers given, you just need to take the two that are closest to the middle and find their average to get your median.

Happy problem solving!

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