Changing Data
Look at the data below:
1, 2, 2, 2, 5, 6, 8, 9, 10
Answer the following questions:
1) If I add a 7 to the data will the median stay the same? Why or why not?
2) If I add a 7 to the data will the range stay the same? Why or why not?
3) If I add a 7 to the data will the mode stay the same? Why or why not?
January 16th, 2009 at 11:14 am
No, the median will not stay the same,the answer is 5.5. The range stays the same 1-10 is always 9 because 7 is not the highest or lowest. The mode stays the same because it is always 2, 2 is still more.
January 16th, 2009 at 11:29 am
No the median will not stay the same because,then the answer would be 5.5. The range will stay the same because the numbers between 1 and 10 is always 9. The mode stays the same because 2 stills shows up the most.
January 16th, 2009 at 12:02 pm
1. The median will not change because just adding one number doesn’t make a difference.
2. The range will not change because 7 is not the highest or lowest number.
3. The mode will not change because there are more 2’s than 7’s.
January 16th, 2009 at 12:06 pm
1, 2, 2, 2, 5, 6, 7, 8, 9, 10
1. Seven is not the middle number so it is not the median. 5.5 is the median.
2. No, the range won’t change because 7 is not the highest number or the lowest number.
3. Seven is not the mode because there are more 2’s.