3rd 9 Weeks Review

Independent or Class Review

1. 60, 20, 40, 10, 50, 30,

Find the meanFind the median Find the rangeFind the mode

2. What is an outlier?

12, 15, 23, 15, 30, 87

Identify the outlier in the data set above.

3. 7, 9, 12, 4, 1, 0, 3, 16, 18, 4, 6, 2

Find the 5 number summary for the data set above.

Min = LQ = Median = UQ = Max =

4. How do you find the Interquartile Range (IQR)

5. Use your 5 number summary from the last data set and find the Interquartile Range (IQR)

6. What does IQR tell us about a data set?

• Hint: The _______ the IQR, the more ______

7. Which measure of center (mean or median) is affected by outliers?

8. Which measure of center (mean or median) is not affected by outliers?

9. Find the MAD of Jaxon’s scores

7, 12, 10, 4, 3

10. Find MAD for Brandon’s scores:

5, 7, 8, 8, 3

11. Who is more consistent, Jaxon or Brandon? Why?

12. <R and < T are complementary. If < T is 64 degrees, what is <R?

13. <A and <B are supplementary. <A is 135 degrees. What is <B?

14. Find the missing angles

15. What’s the relationship between <1 and <4?

16. What’s the relationship between <1 and <3?

17. What’s the relationship between <1 and <5?

18. Solve for X and then label the angles

19. Solve for X and then label the angles

20. What are the side requirements to make a triangle?

• Hint: When creating a triangle, the ______ of the measures of the two shortest sides must be _________ than the measure of the third side.

21. Determine if these side lengths will make a triangle.

22. Determine the range of the third side of a triangle when given two of the sides:

A. 12, 16B. 20, 43C. 16, 9

23. What is 35% of 19?

24. What percent of 34 is 17?

25. 40 is 34% of what number?

26. Find the percent of change:

50 is increased to 104

DifferenceOriginal

27. Find the percent of change:

76 is decreased to 15

DifferenceOriginal

28. Cal bought a TV and the original price was $786.00 What is the price after a 30% discount?

29. Kylie bought a pair of jeans for $76. The sales tax was 14%. What is the price of her jeans after taxes?

30. Find the interest if the principal invested was $400 at 5% rate for 7 years.

• I = prt

31.

• After 6 years, an account that earns 13% interest has earned $450. How much money was initially deposited?

32. What is a biased sample?

33. What is a random sample and name one way to take a random sample.

34. List the side lengths from smallest to longest.

35. List the angles from smallest to largest

<T, <S, <U

36. What measure of center do you use if there IS an outlier?

37. What exactly is Mean Absolute Deviation (MAD)?

38. What does a HIGHER MAD (Mean Absolute Deviation ) tell us about a data set?