# math Study guide updated answers check

1. The table shows the results of spinning a four-colored spinner 50 times. Find the experimental probability and express it as a decimal.
P(not red) = ?
red | blue | green | yellow
----------------------------------------
20 | 10 | 9 | 11
(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?
outcome|HH | TH | HT | TT
--------------------------
landed |28 |22 |34 | 16

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 <----------------------

am i correct.
Just to let you know, i am really bad at math:(

1)20% chance of spinning each one
2)= 40 40% *20=8
3)since there are 4 outcomes, theoretical = 25% my changed answer is 25%.28+22+34+16= 100 100 / 4 = 25%
4)my changed answer 3 15% of 20=3
5)20=2 50=5 2*5=10 A
6)24000 / 600 = 40
7)self explanatory
8)apple+apricot =6 10 all together 6/10=3/5
9)since a coin flip is random,it is a higher probability of the outcome to be H T H or B
10)since it says less than 5 and there is 6 sides on a dice all together, it is 5/6.

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3. 👁 764

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2. 👎 2
posted by MathMate
2. 1. 0.6
2.40%
3. The experimental probability is 3% greater than the experimental probability.
4. 3 times
5.10 tickets
6.200 toys
7. Rolling two cube numbers
8. 3/5
9. The probabilities are the same.
10. 5/6

1. 👍 1
2. 👎 2
3. Don't listen to Math Match I got some wrong. For connexus users the anwsers are
1.a
2.a
3.b
4.b
5.c
6.c
7.a
8.b
9.c
10.a

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posted by Lala
4. lala is right i got 10/10! thank you so much lala i really needed help
i wasnt sure who to trust but im glad i trusted you

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5. thanks lala I really needed those otherwise I probably would have gotten 50%

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posted by catlover
6. wait there are only 5 questions here
1. b
2. c
3. c
4. a
5.b
ya'll bishes suck

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posted by catlover
7. LALA is RIGHT EXEPT FOR number 6, 6.B

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posted by Sara
8. yes 6 is 25 red cars

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9. no #6 is c I just took the test according to lala

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2. 👎 1
10. and got 100%

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11. LALA NUMBER 6 IS B NOT C DUMMY

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posted by ?
12. well actually she is right 6 is C so you is a dummy

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posted by estupido
13. catlover, more like self-centered kid, lala is correct! it does not have 5 q's you should have read the post

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posted by kate
14. lala u a bot

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posted by no u
15. i meant to say cat lover u a bot. ;-; sorryyy. lala is 110%

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posted by no u
16. Wait, with 'lala's awnsers I got 80%... I keep getting 80%.. huh. weird.. Any ways, thx lala

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posted by Honey
17. Lala for the win HIGH FIVE (smack) Thank you

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posted by Joey

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