URGENT! PLEASE GIVE ME ANSWERS
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 draw five cards from a standard deck of 52 cards. P(heart) =
. What type of probability is illustrated and why?
(1 point)
• theoretical; the result is based on the number of possible outcomes
• theoretical; the result is found by repeating an experiment
• experimental; the result is based on the number of possible outcomes
• experimental; the result is found by repeating an experiment
3.
A number cube is rolled 150 times. The number 3 comes up 43 times. What is the experimental probability of rolling a 3? What is the theoretical probability of rolling a 3?
(1 point)
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4.
A spinner is divided into 11 equal sections numbered from 0 to 10. You spin the spinner once. What is P(even)?
(1 point)
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5.
A bag contains 6 green marbles and 5 white marbles. You select a marble at random. What are the odds in favor of picking a green marble?
(1 point)
• 1:6
• 5:6
• 6:5
• 6:11
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, 147 of the first 156 customers have not received a star on their receipts. What is the experimental probability of winning a free gallon of milk?
(1 point)
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7.
A bag contains 5 green marbles, 8 red marbles, 11 orange marbles, 7 brown marbles, and 12 blue marbles. You choose a marble, replace it, and choose again. What is P(red, then blue)?
(1 point)
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8.
Each of two urns contains green balls and red balls. Urn I contains 10 green balls and 8 red balls. Urn II contains 3 green balls and 10 red balls. If a ball is drawn from each urn, what is P(red and red)?
(1 point)
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9.
If you spin the spinner below twice, what is P(vowel, then P)?
(1 point)
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10.
You have six $1 bills, eight $5 bills, two $10 bills, and four $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)
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11.
A basket contains the following pieces of fruit: 3 apples, 2 oranges, 2 bananas, 2 pears, and 5 peaches. Jameson picks a fruit at random and does not replace it. Then Brittany picks a fruit at random. What is the probability that Jameson gets a banana and Brittany gets a pear?
(1 point)
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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 8 questions. What is the probability of guessing the correct answers to all of the questions?
(1 point)
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14.
Simplify 4!
(1 point)
• 24
• 10
• 9
• 4
15.
Simplify 10P4.
(1 point)
• 210
• 360
• 5,040
• 151,200
16.
Simplify 8C5.
(1 point)
• 6,720
• 336
• 56
• 10
17.
You and 4 friends go to a concert. In how many different ways can you sit in the assigned seats?
(1 point)
• 20
• 24
• 48
• 120
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. 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
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)

ANSWERS

2017-08-12 19:00:44

eperimental would be the first one

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