Analyzing

1
Analyzing Data
Graphs
Probability
Mixed Problems
Misc
100
100
100
100
100
200
200
200
200
200
300
300
300
300
300
400
400
400
400
400
500
500
500
500
500
2

• Jenny has played in 12 basketball games this
  year. The following list shows the number of
  points that Jenny has scored in the 12 games.
  What must she score in her last game to average
  12 points per game?
• 9, 14, 11, 15, 10, 18, 12, 9, 10, 13, 5, 17

3

• Find the mean, median, and mode of the
  following
• -2, 5, 10, -6, 7, 5,
• -2, 5, 10, -15, 14

4

• Bus service is provided for students living more
  than 1½ miles from school. The distances for ten
  students are ¼, ½, 1, 1,
• 1½, 3½, 4, 4, 6½, and 10. Find the mean and
  mode. Also, how many students are entitled to
  bus service?

5

• Toms 6 test scores are 70, 80, 90, 92, 88, 96.
  What must Tom score on the 7th test to bring his
  average up 1.

6

• The average grade on a test taken by 20 students
  was 75. When one more student took the test
  after school, the class average became 76. What
  score did that student receive?

7

• Tammy wants to show the relationship between her
  test scores and the number of hours she studies
  each week. What type of graph is best for Tammy
  to make?
• Bar graph, scatter plot, circle graph, or
• box-and-whisker plot

8

• The upper quartile is?

9

• Total Expenses are 18,000. How much was spent
  on Rent?

10

• The table shows the ages of 30 tennis players.
  Which statement is true?
• Median gt Mode
• Median Mode
• Median lt Mode
• Median gt Mean

Age Frequency
19 6
18 6
17 12
16 4
15 2
11

• How many members spent 10 or more hours in
  community service?

12

• Sandy is going hiking in the woods. She will
  use the following map of trails to help her plan
  her route. How many different routes can Sandy
  take from Dove Point to Jones Pass?

Blue Cliff
Dove Point
Jones Pass
Curly River
13

• The probability that Smith Agency will win a new
  contract is .3. What is the probability that it
  will not win the contract?

14

• License plates in Huron County will be of the
  form , where is a letter and is a digit
  from 0 to 9 inclusive. The first letter must be
  either W, X, Y, or Z, and the last letter must be
  A or B. If repetition of digits and letters is
  possible, how many different license plates are
  possible in Huron County?

15

• Sam has a bag of marbles. 9 are black, 8 are
  red, 7 are white and 5 are green. Without
  looking Sam draws two marbles. He replaces the
  first marble before drawing the second marble.
  What is the probability that he first picks a
  black marble and then picks a green one?

16

• At the festival, John can win a prize if he
  shoots an arrow into 25-, 50-, or 100-point
  region of a 12 in. by 12 in. dartboard. The
  radii of the concentric circles are 2, 4, and 6
  inches respectively. Assume Johns arrow lands
  on the board. Find the probability of John
  hitting the bulls eye to the nearest tenth
  percent.

17

• A spinner is divided into five equal parts
  numbered 1,2,3,4,5. If the arrow is spun what
  are the odds it will stop on a prime number?

18

• Based on the chart, when did the greatest
  increase in dollars raised occur?

19

• A pizza can be ordered in three sizes small,
  medium, or large. One of three toppings can be
  ordered pepperoni, mushrooms, or onions. How
  many different ways can the pizza be ordered?

20

• Jim filled a box with empty jars that each have
  a diameter of 20 centimeters. If Jim throws a
  penny into the box, what is the probability of
  the penny landing in a jar?

60 cm
80 cm
21

• Find the interquartile range for the following
  data.
• 50, 42, 77, 25, 72, 55, 19,
• 58, 55, 60, 65, 75, 85, 80

22
How many different ways can the letters in the
word MONEY be arranged?
23

• There are 4 entrances to a building, 3 escalators
  up, and 2 escalators down. How many ways can a
  person enter from outside, go to the second
  floor, return to the first floor, and then leave
  the building?

24
A box of identically shaped candies contains 3
chocolate, 4 butterscotch, and 2 berry. Chris
closes her eyes and picks three candies. Find
the probability that she will get 2 butterscotch
and 1 chocolate in that order.
25

• A class of 24 students was surveyed to find
  favorite toppings on pizza as follows
• Sausage-9 Bacon-4 Pepperoni-3 Peppers-2
  Mushrooms-6
• In a circle graph what would the central angle of
  Sausage equal?

26
Consider the following scores 12, 56, 62, 66,
74, 83, 88, 90, 93, 96 If the outlier, 12 is
removed from the set above, what is the
approximate increase in the mean of the remaining
scores?