Oct 15, 2010 by Ronni Nmans | Posted in Homework Help
I did a few but got confused, could somebody check the ones i did and help me with the others thank you
REVIEW EXCH19
1. Question:
There are 50 students in the school orchestra in the following sections: 25 String Section 15 Woodwind 5 Percussion 5 Brass One student will be chosen at random to present the orchestra director with an award. What is the probability the student will be from the woodwind section?
Your Answer: 15 of 50
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2. Question:
Fluffy's cat treat box contains 6 chicken-flavored treats, 5 beef-flavored treats, and 7 fish-flavored treats. If Fluffy's owner reaches in the box without looking, and chooses one treat, what are the odds that Fluffy will get a chicken-flavored treat?
Your Answer:
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3. Question:
The spinner on the right stopped on the number 5 on the first spin. What is the probability that it will not stop on the number 5 on the second spin? (Refer to figure on PAGE 255)
Your Answer:
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4. Question:
Three cakes are sliced into 20 pieces each. Each cake contains 1 gold ring. What is the probability that one person who eats one piece of cake from each of the 3 cakes will find 3 gold rings?
Your Answer:
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5. Question:
Brianna tossed a coin 4 times. What is the probability she got all tails?
Your Answer:
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6. Question:
Sherri turned the spinner on the right 3 times. What is the probability that the pointer always landed on a shaded number? (Refer to figure on PAGE 255)
Your Answer:
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7. Question:
A box of a dozen donuts has 3 lemon cream-filled, 5 chocolate cream-filled, and 4 vanilla cream-filled. If the donuts look identical, what are the odds that if you pick a donut at random, it will be chocolate cream-filled?
Your Answer:
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8. Question:
Erica got a new credit card in the mail. What is the probability that the last four digits are all 5's?
Your Answer:
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9. Question:
There are 26 letters in the alphabet. What is the probability that the first two letters of your new license plate will be your initials?
Your Answer:
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10. Question:
Mary has 4 green mints and 8 white mints that are the same size in her pocket. If she picks out one, what are the odds it will be green?
Your Answer:
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11. Question:
For questions #11-19, answer the following combination problems. David is ordering a new truck. He has a color choice of 3 interior colors, 6 exterior colors, 4 music systems, and 5 choices of rims. How many combinations does he have to chose from?
Your Answer:
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12. Question:
Missy has 12 colors of nail polish. She wears 1 color each day, 7 different colors a week. How many combinations of 7 colors can she make before she has to repeat the same 7 colors in a week?
Your Answer:
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13. Question:
Eileen has a collection of 12 antique hats. She plans to donate 5 of the hats to a museum. How many combinations of hats are possible for her donation?
Your Answer:
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14. Question:
How many combinations of 4 numbers can be made from the set {1,2,3,4,5,6}?
Your Answer:
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15. Question:
Ms. Randal has 10 students. Every day she randomly draws the names of 2 students out of a bag to turn in their homework for a test grade. How many combinations of 2 students can she draw?
Your Answer:
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16. Question:
In the lunch line, students can choose 1 out of 3 meats, 1 out of 4 vegetables, 1 out of 3 desserts, and 1 out of 5 drinks. How many lunch combinations are there?
Your Answer:
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17. Question:
Adrianna has 4 hats, 8 shirts, and 9 pairs of pants. Choosing one of each, how many different clothes combinations can she make?
Your Answer:
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18. Question:
The buffet line offers 5 kinds of meat, 3 different salads, a choice of 4 desserts, and 5 different drinks. If you chose one food from each category, from how many combinations would you have to choose?
Your Answer:
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19. Question:
How many pairs of students can Mrs. Smith choose to go to the library if she has 20 students in her class?
Your Answer:
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