Question

help please !!!!!!

Answer 1

1. You roll a number cube numbered one to six 12 times. P(5) = . What type of probability is illustrated and
why? (1 point)
experimental; the result is based on the number of possible outcomes
experimental; the result is found by repeating an experiment
theoretical; the result is based on the number of possible outcomes
theoretical; the result is found by repeating an experiment
2. You toss a coin 15 times. P(heads) = (1 point)
experimental; the result is found by repeating an experiment.
experimental; the result is based on the number of possible outcomes.
theoretical; the result is found by repeating an experiment.
theoretical; the result is based on the number of possible outcomes.
3. A number cube is rolled 160 times. The number 2 comes up 39 times. What is the experimental probability of
rolling a 2? What is the theoretical probability of rolling a 2? (1 point)
;
;
;
;
4. Note: The item below has been reviewed and is scheduled to be updated. All students will receive full
credit for any response to the following.
A spinner is divided into 10 equal sections numbered from 0 to 10. You spin the spinner once. What is P(even)?
(1 point)2/8
5. A bag contains 9 green marbles and 11 white marbles. You select a marble at random. What are the odds in
favor of picking a green marble? (1 point)
9:20
2:9
11:9
9:11
6. Food Express is running a special promotion in which customers can win a free gallon of milk with their food
purchase if there is a star on their receipt. So far, 129 of the first 138 customers have not received a star on their
receipts. What is the experimental probability of winning a free gallon of milk? (1 point)
7. A bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles.
You choose a marble, replace it, and choose again. What is P(red, then blue)? (1 point)
8. Each of two urns contains green balls and red balls. Urn I contains 8 green balls and 12 red balls. Urn II
contains 5 green balls and 8 red balls. If a ball is drawn from each urn, what is P(red and red)? (1 point) 3/8
9. If you spin the spinner below twice, what is P(vowel, then Q)?
(1 point)
10. You have five $1 bills, four $5 bills, six $10 bills, and three $20 bills in your wallet. You select a bill at random.
Without replacing the bill, you choose a second bill. What is P($1, then $10)? (1 point)4/8
11. A basket contains the following pieces of fruit: 3 apples, 2 oranges, 2 bananas, 2 pears, and 5 peaches. Jack
picks a fruit at random and does not replace it. Then Bethany picks a fruit at random. What is the probability that
Jack gets a peach and Bethany gets an orange? (1 point)
12. The probability of a certain hockey player making a goal after hitting a slap shot is . How many successful
slap shots would you expect her to make after 120 attempts? (1 point)
5
20
24
60
13. A true-false test has 5 questions. What is the probability of guessing the correct answers to all of the questions?
(1 point)
14. Simplify 5! (1 point)
5
15
5/8
120
125
15. Simplify 10P4
. (1 point)
210
360
5,040
151,200
16. Simplify 15C3
. (1 point)
182
455
2,730
910
17. You and 3 friends go to a concert. In how many different ways can you sit in the assigned seats? (1 point)
6 ways
12 ways
24 ways
10 ways
18. You own 6 pairs of jeans and want to take 2 of them with you on vacation. In how many ways can you choose
2 pairs of jeans? (1 point)
10
12
15
20
19. WorkPad
Note: For questions 19–20, remember to show all of the steps that you use to solve the problem. Be sure to use the text
box where the question mark (?) first appears to show your mathematical work. You can use the comments field to
explain your work. Your teacher will review each step of your response to ensure you receive proper credit for your
answer.
A box contains 95 pink rubber bands and 90 brown rubber bands. You select a rubber band at random from the box.6/8
Find each probability. Write the probability as a fraction in simplest form.
a. Find the theoretical probability of selecting a pink rubber band.
b. Find the theoretical probability of selecting a brown rubber band.
c. You repeatedly choose a rubber band from the box, record the color, and put the rubber band back in the box. The
results are shown in the table below. Find the experimental probability of each color based on the table.
Outcome Occurrences
Pink 36
Brown 33
(3 points)
7/8
20. The diagram below shows the contents of a jar from which you select marbles at random.
a. What is the probability of selecting a red marble, replacing it, and then selecting a blue marble? Show your work.
b. What is the probability of selecting a red marble, setting it aside, and then selecting a blue marble? Show your work.
c. Are the answers to parts (a) and (b) the same? Why or why not? (3 points)

Answer 2

oh ok but thanks for your help

Answer 3

I suspect this is a Math quiz. OpenStudy is against cheating on all quizzes and tests. You will have to take the quiz for yourself as it is meant to assess your own understanding of the material and not ours. In the future, you may use OpenStudy to prepare for the quiz but not on a quiz itself!