SAT, 30.07.2021 16:00 dlaskey646
A box of nine iPhone 5C cellphones (the iPhone “for the colorful”) contains two yellow cellphones and seven green cellphones. (a) If two cellphones are randomly selected from the box, without replacement (the first cellphone is not returned to the box after it is selected), what is the probability that both cellphones selected will be green? (b) If two cellphones are randomly selected from the box, without replacement (the first cellphone is not returned to the box after it is selected), what is the probability that there will be one yellow cellphone and one green cellphone selected? (c) If three cellphones are selected, with replacement (the first cellphones are returned to the box after it is selected), what is the probability that all three will be yellow? (d) If you were sampling with replacement (the first cellphone is returned to the box after it is selected), what would be the answers to (a) and (b)? 3
Answers: 3
SAT, 26.06.2019 05:00
Panthers and leopards prey on deer in an ecosystem. for unknown reasons, the population of leopards increased drastically. what are the likely effects of this change on the species? 1. more food for panthers and more competition for leopards 2. less food and more competition for panthers 3. fewer deer and more competition for panthers 4. more food for deer and less competition for panthers and leopards 5. more food for leopards and less competition for panthers
Answers: 1
SAT, 26.06.2019 05:30
An ecosystem is shown in the illustration. assume that human activities have led to a decrease in the number of eagles. a virus attack on rabbits has led to a decrease in their population in the ecosystem. which two sentences describe likely effects on the ecosystem? 1. there’s an increase in the number of snakes and insects and a decrease in the number of frogs. 2. there’s an increase in the number of snakes and insects, and the storks face increased competition for food. 3. there’s an increase in the number of storks and a decrease in the number of snakes and insects. 4. there’s an increase in the number of frogs and a decrease in the number of storks and insects. 5. there’s a decrease in the number of snakes, insects, and frogs.
Answers: 1
SAT, 29.06.2019 12:00
Which of the following sentences uses an incorrect verb? a. there is only one good candidate. b. many good candidates are possible. c. a good candidate is hard to find. d. there is many possible candidates.
Answers: 1
SAT, 29.06.2019 21:30
Across 2. 9 words 3. 5 words 5. 8 words 6. 8 words 8. 9 words 9. 10 words 10. 5 words13. 10 words15. 10 wordsdown 1. 5 words 3. 13 words 4. 5 words7. 4 words11. 13 words12. 6 words 14. 6 words
Answers: 1
A box of nine iPhone 5C cellphones (the iPhone “for the colorful”) contains two yellow cellphones an...
Mathematics, 29.07.2019 15:30
History, 29.07.2019 15:30
Geography, 29.07.2019 15:30
Mathematics, 29.07.2019 15:30
Computers and Technology, 29.07.2019 15:30
Business, 29.07.2019 15:30
History, 29.07.2019 15:30
History, 29.07.2019 15:30
Social Studies, 29.07.2019 15:30
Mathematics, 29.07.2019 15:30
History, 29.07.2019 15:30