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Harrizon [31]
3 years ago
13

Alvaro is interested in the relationship between weather conditions and whether the downtown train runs on time. For a year, he

records whether each day is sunny, cloudy, rainy, or snowy, as well as whether this train arrives on time or is delayed. Here are his results:
Weather condition On time Delayed Total
Sunny
167
3
170
Cloudy
115
5
120
Rainy
40
15
55
Snowy
8
12
20
Total
330
35
365
Which of the following statements is true?

When the weather was rainy, it was more likely for the train to be delayed than on time.

(Choice B)
B
When the weather was snowy, it was more likely for the train to be delayed than on time.

(Choice C)
C
More than half of the delays occurred on rainy days.

(Choice D)
D
The most delays came on snowy days.
Mathematics
2 answers:
sladkih [1.3K]3 years ago
8 0

Answer:

I got B :)))

Step-by-step explanation:

ale4655 [162]3 years ago
8 0

Answer:

the answer to this problem is b

Step-by-step explanation:

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Pls help answer this, I will need an explanation as well-Thanks.
Mnenie [13.5K]
Hello!

First you have to find the probability of picking the right numbers

To do this you do the amount of favorable outcomes over the total amount of outcomes

There are 5 favorable numbers and 18 in total

This is a probability of 5/18

For the second number there of 4 favorable numbers and 17 in total since you already picked one

This is a probability of 4/ 17

For the third number there are 3 favorable numbers and 16 in total

This is a probability of 3/ 16

For the fourth number there are 2 favorable numbers and 15 in total

This is a probability of 2/ 15

For the fifth number there are 1 favorable numbers and 14 in total

This is a probability of 1/14

To get the answer you multiply all the probabilities together

5/18 * 4/17 * 3/16 * 2/15 * 1/14 = 1 / 8568

The answer is \frac{1}{8568}

Hope this helps!
7 0
3 years ago
In the figure above, triangle ABC is similar to<br> triangle DEF. What is the value of cos(E)?
Effectus [21]

Answer:

Answer is 12/13 B

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Jasper's lawn is 3/4 of an acre in size. The fertilizer bag states that 5 1/2 bags are required for 1 acre. How many bags does J
Nady [450]

Answer: 4\dfrac{1}{8}\ \text{bags}

Step-by-step explanation:

Given

Jasper lawn is three-fourth of an acre

1 acre of land requires 5\frac{1}{2} bags

convert mixed numeral to fraction

\Rightarrow 5\dfrac{1}{2}=\dfrac{11}{2}

\therefore 1\ \text{acre}\equiv\dfrac{11}{2}\ \text{bags}\\\\\Rightarrow \dfrac{3}{4}\ \text{acre}\equiv \dfrac{11}{2}\times \dfrac{3}{4}=\dfrac{33}{8}\ \text{bags}

\Rightarrow \dfrac{33}{8}\ \text{bags}=4\dfrac{1}{8}\ \text{bags}

8 0
2 years ago
10 faces and 12 vertices,how many edges does it have?
MArishka [77]
The answer is 12 edges :)
6 0
3 years ago
In the United States, a person eats more than 40,000 pounds of bread in a lifetime if she or he lives to be 80 years old. Does t
Shalnov [3]
Look at some shorter periods of time to decide whether their reasonable. Do that by simplifying the fraction. . . . . 40,000 pounds / 80 years = 4,000 pounds / 8 years = 2,000 pounds (1 ton) / 4 years = 1,000 pounds / 2 years (have you decided yet ? Well, simplify it some more) 1,000 pounds / 2 years = 500 pounds per year = almost 1 and 1/2 pounds of bread every day of your life. NOW what do you think ? Make sense ?
8 0
3 years ago
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