math study guide
posted by DragonBornFU5R0D48 .
1. The table shows the results of spinning a fourcolored spinner 50 times. Find the experimental probability and express it as a decimal.
P(not red) = ?
(1 point)
a 0.6
b 0.4
c 0.2
d 0.3
2. You roll a number cube 20 times. The number 4 is rolled 8 times. What is the experimental probability of rolling a 4? (1 point)
a 40%
b 25%
c 20%
d 17%
3. The table below shows the results of flipping two coins. How does the experimental probability of getting at least one tails compare to the
theoretical probability of getting at least one?
A The experimental probability is 3% greater than the theoretical probability.
B The theoretical probability is 3% greater than the experimental probability.
C The experimental probability is equal to the theoretical probability.
D The experimental probability is about 1% less than the theoretical probability.
4. The probability of winning a game is 15%. If you play 20 times, how many times should you expect to win? (1 point)
a 5 times
b 3 times
c 6 times
d 15 times
5. The probability of having a winning raffle ticket is 20%. If you bought 50 tickets, how many winning tickets should you expect to have?
a 5 tickets
b 3 tickets
c 8 tickets
d 10 tickets
6. A company finds 5 defective toys in a sample of 600. Predict how many defective toys are in a shipment of 24,000.
a 40 toys
b 166 toys
c 200 toys
d 20 toys
7. Which of the following is an example of independent events?
A rolling two number cubes
B selecting marbles from a bag without
replacement after each draw
C choosing and eating a piece of candy from a dish and then choosing another piece of candy
D Pulling a card from a deck when other players have already pulled several cards from that deck
8. A bag of fruit contains 4 apples, 1 plum, 2 apricots, and 3 oranges. Pieces of fruit are drawn twice with replacement. What is P(apple, then
apricot)? (1 point)
a 4/5
b 2/25
c 3/25
d 3/5
9. A coin is flipped three times. How the does P(H, H, H) compare to P(H, T, H)? (1 point)
A. P(H, H, H) is greater than P(H, T, H)
B.P(H, T, H) is greater than P(H, H, H).
c.The probabilities are the same.
d.There is no way to tell with the information given.
10. A coin is tossed and a number cube is rolled. What is P(heads, a number less than 5)? (1 point)
A 1/3
B 5/12
C 2/3
D 5/6
math Study guide  MathMate, Friday, June 6, 2014 at 7:29pm
What do you think for each of the problems?
1)c
2)d
3)B
outcomeHH  TH  HT  TT

landed 28 22 34  16
4)c
5)a
6)a
7)a
8)a
9)B
10)D
am i correct?

math study guide 
Damon
1. no idea, do not have data
2. I get 8/20 = .40
3. again no data but in theory 3/4
4. 15/100 = 3/20
5. 20/100 = x/50 ???
Hey, are you just guessing or what?
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