Question is down below
2 answers:
It’s the 3rd quartile! Here’s a labeled picture of each of the things on there to help you out in the future. Lower quartile on the picture below is Q1 (quartile 1 or 1st quartile) and upper quartile on the picture below means Q3 (quartile 3 or 3rd quartile). The lower and upper extreme means the minimum and maximum!
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The mean is the average of the numbers.
It is easy to calculate: add up all the numbers, then divide by how many numbers there are.
Let the number of sit-ups you have to do Sunday be x. Then the sum of all sit-ups is
100+65+120+150+90+0+x=525+x.
The number of days is 7.
Thus, the mean is
You know that the mean number of sit-ups per day is 100, equate these two means and solve the equation:
Answer: 175 sit-ups