Mathematics, 04.04.2020 14:12 yuser7865

James is interested in the relationship between weather conditions and whether the downtown train runs on time. For a year, James records the weather each day as well as whether this train arrives on time or is delayed. Here are his results:
Weather condition On-time Delayed Total
Sunny 167167167 333 170170170
Cloudy 115115115 555 120120120
Rainy 404040 151515 555555
Snowy 888 121212 202020
Total 330330330 353535 365365365
Find the marginal distribution of arrival status in percentages.
Round to the nearest whole percent.
On-time:
\%%percent
Delayed:
\%%percent
Stuck?Use a hint.

Answers: 3

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Answer from: Nalolivares

Using proportions, it is found that the marginal distribution is:

90% of the flights were on time.10% of the flights were delayed.

---------------------------

In total, there were 170 + 120 + 55 + 20 = 365 flights.Of those, 167 + 115 + 40 + 8 = 330 on time. The percentage on time is:

$P = \frac{330}{365} \times 100\% = 90\%$

90% on time, and the rest, that is, 100% - 90% = 10% were delayed, and the marginal distribution is described by these percentages.

A similar problem is given at link

Answer from: triston12192000

(i) 90%

(ii) 10%

Step-by-step explanation:

Given the data as;

Weather condition on-time Delayed Total

Sunny 167 3 170

Cloudy 115 5 120

Rainy 40 15 55

Snow 8 12 20

Total 330 35 365

The marginal distribution of arrival status in percentages =arrival status total/total sum *100

(i) on-time = 330/365 * 100 = 90.42 = 90%

(ii) Delayed = 35/365 *100 =9.58 = 10%

Answer from: Quest

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

Answer from: Quest

l.jnl.j/n.m,lm,

step-by-step explanation:

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