PLease help I am struggeling
You roll a number cube numbered one to six 12 times. P(5) = two over three. What type of probability is illustrated and why? (1 point)
Unselected answer (0 pts) experimental; the result is based on the number of possible outcomes
Correct answer (1 pt) experimental; the result is found by repeating an experiment
Unselected answer (0 pts) theoretical; the result is based on the number of possible outcomes
Unselected answer (0 pts) theoretical; the result is found by repeating an experiment
1 /1 point
2. You toss a coin 15 times. P(heads) two-fifths = (1 point)
Unselected answer (1 pt) experimental; the result is found by repeating an experiment.
Unselected answer (0 pts) experimental; the result is based on the number of possible outcomes.
Unselected answer (0 pts) theoretical; the result is found by repeating an experiment.
Incorrect Answer (0 pts) theoretical; the result is based on the number of possible outcomes.
0 /1 point
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)
Incorrect Answer (0 pts) start fraction 39 over 160 end fraction; start fraction 1 over 80 end fraction
Unselected answer (0 pts) start fraction 1 over 6 end fraction; start fraction 39 over 160 end fraction
Unselected answer (1 pt) start fraction 39 over 160 end fraction; start fraction 1 over 6 end fraction
Unselected answer (0 pts) start fraction 121 over 160 end fraction; start fraction 1 over 6 end fraction
0 /1 point
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)
Unselected answer (0 pts) start fraction 3 over 5 end fraction
Incorrect Answer (0 pts) one-half
Unselected answer (0 pts) Start Fraction 5 over 11 End Fraction
Unselected answer (1 pt) Start Fraction 6 over 11 End Fraction
0 /1 point
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)
Unselected answer (0 pts) 9:20
Unselected answer (0 pts) 2:9
Incorrect Answer (0 pts) 11:9
Unselected answer (1 pt) 9:11
0 /1 point
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)
Unselected answer (1 pt) 3 over 46
Incorrect Answer (0 pts) 43 over 46
Unselected answer (0 pts) 11 over 138
Unselected answer (0 pts) 43 over 138
0 /1 point
7. A bag contains 4 green marbles, 6 red marbles, 14 orange marbles, 5 brown marbles, and 8 blue marbles. You choose a marble, replace it, and choose again. What is P(red, then blue)? (1 point)
Unselected answer (1 pt) Start Fraction 48 over 1369 End Fraction
Unselected answer (0 pts) Start Fraction 14 over 1369 End Fraction
Unselected answer (0 pts) Start Fraction 27 over 37 End Fraction
Incorrect Answer (0 pts) Start Fraction 14 over 37 End Fraction
0 /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)
Unselected answer (0 pts) 79 over 65
Unselected answer (1 pt) 24 over 65
Unselected answer (0 pts) 20 over 33
Incorrect Answer (0 pts) 2 over 13
0 /1 point
9. If you spin the spinner below twice, what is P(vowel, then Q)?
A spinner is divided evenly into 6 sectors. From the top of the spinner clockwise, the sectors are labeled F, G, E, I, Q, and O. The spinner arrow points to the sector labeled Q. (1 point)
Incorrect Answer (0 pts) one-tenth
Unselected answer (0 pts) one-ninth
Unselected answer (0 pts) start fraction 2 over 9 end fraction
Unselected answer (1 pt) start fraction 1 over 12 end fraction
0 /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)
Unselected answer (0 pts) The fraction states 11 over 35.
Unselected answer (1 pt) Start Fraction 5 over 51 End Fraction
Unselected answer (0 pts) Start Fraction 5 over 54 End Fraction
Incorrect Answer (0 pts) Start Fraction 193 over 306 End Fraction
0 /1 point
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)
Unselected answer (0 pts) Start Fraction 10 over 27 End Fraction
Correct answer (1 pt) Start Fraction 5 over 91 End Fraction
Unselected answer (0 pts) Start Fraction 5 over 98 End Fraction
Unselected answer (0 pts) Start Fraction 93 over 182 End Fraction
1 /1 point
12. The probability of a basketball player hitting a foul shot is start fraction 1 over 3 end fraction. How many shots would you expect her to make in 90 attempts? (1 point)
Unselected answer (1 pt) 30
Incorrect Answer (0 pts) 60
Unselected answer (0 pts) 3
Unselected answer (0 pts) 45
0 /1 point
13. A true-false test has 5 questions. What is the probability of guessing the correct answers to all of the questions? (1 point)
Incorrect Answer (0 pts) Start Fraction 1 over 25 End Fraction
Unselected answer (0 pts) one-tenth
Unselected answer (1 pt) Start Fraction 1 over 32 End Fraction
Unselected answer (0 pts) start fraction 1 over 7 end fraction
0 /1 point
14. Simplify 5! (1 point)
Unselected answer (0 pts) 5
Unselected answer (0 pts) 15
Unselected answer (1 pt) 120
Incorrect Answer (0 pts) 125
0 /1 point
15. Simplify 8P3. (1 point)
answer (0 pts) 42
answer (1 pt) 336
Answer (0 pts) 40,432
answer (0 pts) 56
0 /1 point
16. Simplify 8C5. (1 point)
Answer (0 pts) 6,720
answer (0 pts) 336
answer (1 pt) 56
answer (0 pts) 10
0 /1 point
17. You and 4 friends go to a concert. In how many different ways can you sit in the assigned seats? (1 point)
answer (0 pts) 20
answer (0 pts) 24
Answer (0 pts) 48
answer (1 pt) 120
0 /1 point
18. You own 5 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)
answer (1 pt) 10 ways
Answer (0 pts) 15 ways
answer (0 pts) 4 ways
answer (0 pts) 20 ways
6 answers
#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?
A: 10/27
B: 5/91 ***
C: 5/98
D: 93/182
No one here cares how many points they are worth
Of course all the answers are unselected
Why mark an Incorrect Answer?
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Since most of these questions are very similar, pick a few of different types, and show why you chose the answer you did. (That is, show some work.) Then, if we have to correct your work, you can apply the steps to your other problems of the same kind.
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3 answers