CC Coordinate Algebra Unit 4 – Describing Data Unit 4 Quiz Review

Name: ______Date: ______Period______

Quiz 1 Review

CC Coordinate Algebra Unit 4 – Describing Data Unit 4 Quiz Review

Use the data below the answer the following. Remember to put the numbers in order!

81, 72, 91, 88, 71, 73, 82, 100, 81, 86

1. Find the range? ______2. IQR?______

3. Min? _____ 4. Q1?_____ 5. Median?______6. Q3?______7. Max?______

8. Draw a box plot:

9. Are there any outliers in the data set? Show your work!

10. Mean?______

11. MAD? ______

12. The table below gives the points scored by a Harrison basketball player for 8 randomly selected games. Find the Mean, Mode, and Median.

Mean?_____ Median?______Mode?______

Harrison Basketball Player
5 / 10 / 2 / 1 / 0 / 7 / 8 / 6

13. Which measure of central tendency probably gives the LEAST ACCURATE prediction of a "typical" amount of points this player contributes?

14. Using the above histogram:

a.  in what interval would the lower quartile fall?______

b.  the upper quartile?______

c.  describe the shape of the distribution (center, spread, shape)

15. Construct a frequency table from the following information:

A survey of 200 9th and 10th graders was given to determine what their favorite subject was. 68 said Basketball (40 which were freshmen), 42 said Football (20 which were sophomores), and 50 freshmen and 40 sophomores said Baseball was their favorite.

Football / Basketball / Baseball / Total
9th
10th
Total

Based on your table above, answer the following questions:

a)  Complete the Table(Remember to complete the margins)

b)  What is the probability of choosing a 10th grader who prefers Basketball?

c)  What is the probability of choosing a 9th grader who prefers Football?

d)  What is the probability of randomly choosing a 10th grader?

e)  What is the probability of randomly choosing someone who prefers Baseball?

f)  Out of the students prefer baseball, what percentage is in the 10th grade?

g)  What is the marginal probability of picking students who prefers Basketball?

h)  What percent of students prefer Football and are in the 9th grade?

UGA / Bama / Ga Tech / Total
guys / 10 / 6 / 4
girls / 14 / 3 / 3
teachers / 10 / 4 / 6
Total

16. Fill in the marginal frequencies and the grand total.

17. Go back and calculate the joint and marginal frequencies as percentages. (there will now be 2 numbers in each cell)

18. If a random girl were selected, what is the conditional frequency that their favorite team is either UGA or Georgia Tech?

19. Given a teacher was selected, what is the conditional probability that their favorite team is UGA? J