math Study guide updated answers check

posted by .

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.

PLEASE CHECK

  • math Study guide updated answers check -

    See other post for comments on your answers.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. experimental probability

    you spin a spinner 50 times. it lands on red 8 times, yellow 12 times, green 20 times, and blue 10 times. based on the results, what is the experimental probility of its landing on green or yellow?
  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
  3. math Study guide 3

    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) = ?
  4. Math

    Carol makes a spinner for a game. The spinner is divided into 10 equal sections. Each section is shaded 1 of these colors: green, red, yellow, or blue. On this spinner, the probability of spinning green is 3 times as great as the probability …
  5. math

    A spinner is divided into blue green and red parts. George spins the spinner 300 times. Below is the table of outcome Part Time Spun Blue 91 Green 107 Red 102 Based on the table what was George's experimental probability of spinning …
  6. 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) = ?
  7. 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) = ?
  8. 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) = ?
  9. Math

    I have my answers but need them checked and i probably got them wrong so if you can please explain. #1: Which of the following sample spaces correctly lists all the possible outcomes for flipping a coin and spinning a four-colored …
  10. 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

More Similar Questions