# math Study guide

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) = ?

(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

1. 👍 0
2. 👎 0
3. 👁 747
1. What do you think for each of the problems?

1. 👍 0
2. 👎 0
posted by MathMate
2. 1)c
2)d
3)B
outcome|HH | 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?

1. 👍 0
2. 👎 1
3. 1) table not shown, so cannot verify.
2) what is the probability of rolling 8 times out of 20?
3) correct.
4) expected number of outcomes
= probability * number of trials
So 20*15%=20*0.15=3
5) See number (4) and try again.
6) What is the experimental probability of pulling 5 defective from 600?
7) correct
8) Please explain how you chose a).
9) correct.
10) Please explain how you got d).

1. 👍 0
2. 👎 1
posted by MathMate
4. 1.a
2.a
3.b
4.b
5.c
6.b
7.a
8.b
9.c
10.a

1. 👍 1
2. 👎 1
5. The answer to number 6 is not A, to find the answer divide 24,000 by 600 and then multiply your result by five.

1. 👍 0
2. 👎 1
6. Number 6 is c

1. 👍 0
2. 👎 1
7. to sum It up

1.a
2.a
3.b
4.b
5.c
6.b
7.a
8.b
9.c
10.a

1. 👍 0
2. 👎 1
8. Anonymous is incorrect
with his/her answers i got a 80

1.A
2.A
3.B
4.B
5.C
6.C
7.A
8.B
9.C
10.A

1. 👍 7
2. 👎 0
9. Thanks you so much 100% is correct, they've got the right answers

1. 👍 4
2. 👎 0
posted by Ashlyn
10. THANK YOUUU SO MUUUCH!!!

1. 👍 2
2. 👎 0
posted by nuw
11. 100% correct is right

1. 👍 1
2. 👎 0
12. THANK U

1. 👍 1
2. 👎 0

## Similar Questions

1. ### math

the table shows the results of spinning a four-colored spinner 50 times. find the experimental probability and express it as a decimal PLEASE HELP I have to get this done by tonight

asked by Courtney on May 24, 2019
2. ### Math

The table shows the results of spinning a four-colored spinner 50 times. Find the experimental probability and express it as a decimal RED 20 BLUE 10 GREEN 9 YELLOW 11

asked by DragonBornFU5R0D48 on June 6, 2014
3. ### Math

|Color | red | blue| green| yellow| | |__________________________________ | | # of times spun|20| 10| 9| 11| | |___________________________________| (A messy version of the table above) The table shows the results of spinning a

asked by Anonymous on April 25, 2018
4. ### math

The table shows the results of a spinner with four colored sections. Use the table to answer the question. The spinner is spun 50 more times. Which is the best prediction for the number of times the spinner will stop on white?

asked by sam on May 14, 2014
5. ### Math

The table shows the results of a spinner with four colored sections. Use the table to answer the question. The spinner is spun 50 more times. Which is the best prediction for the number of times the spinner will stop on blue?

asked by jacob on January 18, 2017
1. ### Math

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 blue) = ? (Red) (Blue) (Green) (Yellow) 20 10 9 11 A. 0.1 B. 0.4 C. 0.8 D. 0.2

asked by Kpop on May 30, 2018
2. ### Math i dont understand

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) = ? (1 point) a 0.6 b 0.4 c 0.2 d 0.3 2. You roll a number cube 20 times. The

asked by Alexia Marsel on May 19, 2016
3. ### PLZ HELP MT MIND WILL EXPLODE I DONT UNDERSTAND!!!

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) = ? (1 point) a 0.6 b 0.4 c 0.2 d 0.3 3. The table below shows the results of

asked by Alexia Marsel on May 20, 2016
4. ### MATH

The table shows the result of spinning a four-colored spinner 50 times. Find the experimental probability and express it as a decimal P(not red) Color RED BLUE GREEN YELLOW Times Spun 20 10 9 11 A. 0.6 B. 0.4***** C. 0.2 D. 0.3

asked by HELP PLLLLLLLLLSSSSSS on May 30, 2017
5. ### MS.SUE DAMON REED PSYDAG PLZ HELP ON MATH PLZZZ!!!

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) = ? (1 point) a 0.6 b 0.4 c 0.2 d 0.3 3. The table below shows the results of

asked by Alexia Marsel on May 20, 2016
6. ### Math

A spinner has three sections. The table shows the results of spinning the arrow on the spinner 80 times. Section 1 18 Section 2 30 Section 3 32 What is the experimental probability of the arrow stopping over Section 3? A. 1/3 B.

asked by Jessica on June 6, 2015

More Similar Questions