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8-6 Check for Understanding

Posljednje ažuriranje about 3 years ago

17

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Pitanje 1

1.

If a trip is selected at random, what is the probability that customers did not see dolphins on that trip? (Answer with a simplified fraction, a decimal to the nearest hundredth, or a percentage.)

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Pitanje 2

2.

If a trip is selected at random, what is the probability that customers did not see dolphins under the condition that the trip was in the morning? (Answer with a simplified fraction, a decimal to the nearest hundredth, or a percentage.)

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Pitanje 3

3.

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Pitanje 9

9.

Andre flips one fair coin and then flips another fair coin. What is the probability that he gets heads on both coins? (Answer with a simplified fraction, a decimal to the nearest hundredth, or a percentage.)

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Pitanje 10

10.

Andre flips one fair coin and then flips another fair coin. What is the probability that he gets heads on the second coin under the condition that the first flip is heads? (Answer with a simplified fraction, a decimal to the nearest hundredth, or a percentage.)

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Pitanje 11

11.

Andre flips one fair coin and then flips another fair coin. What is the probability that the second flip is not heads? (Answer with a simplified fraction, a decimal to the nearest hundredth, or a percentage.)

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Pitanje 13

13.

Han randomly selects a card from a standard deck. He places it on his desk and then Jada randomly selects a card from the remaining cards. What is the probability that Han selects a card that has diamonds on it? (Answer with a simplified fraction, a decimal to the nearest hundredth, or a percentage.)

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Pitanje 14

14.

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Pitanje 15

15.

Han randomly selects a card from a standard deck. He places it on his desk and then Jada randomly selects a card from the remaining cards. What is the probability that Han selects a card that has diamonds on it and that Jada selects a card that has diamonds on it? (Answer with a simplified fraction, a decimal to the nearest hundredth, or a percentage.)

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Pitanje 16

16.

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Pitanje 17

17.

Pitanje 4

4.

If one of Noah's 50 results is selected at random, what is the probability that the coin was heads? (Answer with a simplified fraction, a decimal to the nearest hundredth, or a percentage.)

Pitanje 5

5.

If on of Noah's 50 results is selected at random, what is the probability that the number cube was 5? (Answer with a simplified fraction, a decimal to the nearest hundredth, or a percentage.)

Pitanje 6

6.

In a genetics experiment on plants, 17% of the plants exhibit trait A and 22% of the plants exhibit trait B. 36% of the plants exhibit trait A or trait B. What percentage of the plants exhibit both trait A and trait B?

Pitanje 7

7.

What is the probability that a person from the survey chosen at random is right-handed under the condition that they are right-eye dominant?

A. 25/30

B. 14/30

C. 14/25

D. 14/17

Pitanje 8

8.

Priya flips a fair coin and then rolls a standard number cube. What is the probability that she rolled a 3 under the condition that she flipped heads?

A. 1/2

B. 1/6

C. 1/12

D. 3/12

Pitanje 12

12.

Andre flips one fair coin and then flips another fair coin. What is the probability that the first flip is heads and the second flip is not heads? (Answer with a simplified fraction, a decimal to the nearest hundredth, or a percentage.)

An agriculturist takes 50 samples of soil and measures the levels of nitrogen and phosphorus. In 46% of the samples nitrogen levels are low and in 28% of the samples the phosphorus levels are low. In 10% of the samples both the nitrogen and phosphorus levels are low. What percentage of samples have nitrogen levels or phosphorus levels that are low? (Answer with a simplified fraction, a decimal to the nearest hundredth, or a percentage.)