Mean, Median, Mode, Range, and Standard Deviation

If a number is added to a set that is bigger than the mean. How does this affect the mean?

• increase
• decrease
• stay the same

If a number is added to a set that is the same as the mean, how does this affect the mean?

• increase
• decrease
• stay the same

If a number is added to a set that is smaller than the mean. How does this affect the mean?

• increase
• decrease
• stay the same

If a number is added to a set that is far away from the mean, how does this affect standard deviation?

• increase
• decrease
• stay the same

If a number is added to the set that is in the middle of the data, how does this affect the range?

• increase
• decrease
• stay the same

If a number is added to the set that is near the mean, how does this affect standard deviation?

• increase
• decrease
• stay the same

Mrs. Algebra's class has an average grade of 87. Later on she realizes she left out Joe's score. His grade was a 65. The new mean will ,....

• increase
• decrease
• stay the same

Mrs. Carmendy's class had an average score of an 89. She forgot to add in a student who got a 10% on the test. How will this affect the class average?

• Increase
• Decrease
• Stay the same

Mrs. Carmendy's class had a range of test grades from 78 to 102. She forgot to add in a student who got a 10% on the test. How will this affect the range?

• increase
• decrease
• stay the same

Mrs. Carmendy's class had a range of test grades from 78 to 102. She forgot to add in a student who got a 80% on the test. How will this affect the range?

• Increase
• Decrease
• Stay the Same