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Gennadij [26K]
2 years ago
10

L

Mathematics
1 answer:
Effectus [21]2 years ago
7 0

Answer:

Step-by-step explanation:

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She can ride the bus 12 times before she needs to load more money on  her pass.

Step-by-step explanation

1. You would take 18 and divide it by 1.5 (1.50) to get 12.

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Suppose that a travel bureau claims that the trees in a forest are 83 feet tall on average, With a standard deviation of 2 feet
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Step-by-step explanation:

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Applying empirical rule , means that 95% of data fall within two standard deviations.

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Outside of this range=  x ≤ 83.5  and ≥  84.5

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2 years ago
Find the value of each factional expression <br><br> 4! <br><br> A 3 <br> B 6<br> C 12<br> D 24
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Step-by-step explanation:

good luck have a nice day

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3 years ago
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40. In a statistics class of 30 students, there were 13 men and 17 women. Two of the men and three of the women received an A in
Harrizon [31]

Answer:

a) 56.67% probability that the student is a woman

b) 16.67% probability that the student received an A

c) 63.33% probability that the student is a woman or received an A.

d) 83.33% probability that the student did not receive an A.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

We have that:

30 students

13 men

17 women

2 men that got an A and 11 men that did not get an A.

3 women that got an A and 14 women that did not get an A.

a. Find the probability that the student is a woman.

30 students, of which 17 are women.

P = \frac{17}{30} = 0.5667

56.67% probability that the student is a woman

b. Find the probability that the student received an A.

30 students, of which 5 received an A

P = \frac{5}{30} = 0.1667

16.67% probability that the student received an A

c. Find the probability that the student is a woman or received an A.

30 students, of which 17 are women and 2 are men who received an A. So

P = \frac{19}{30} = 0.6333

63.33% probability that the student is a woman or received an A.

d. Find the probability that the student did not receive an A.

30 students, of which 25 did not receive an A.

P = \frac{25}{30} = 0.8333

83.33% probability that the student did not receive an A.

7 0
3 years ago
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