The ratio of girls to boys would be 16:12 because if you divide 28 by 2 you get 14. subtract 2 to on one of them and add the two to the other. You get 12 and 16. There is a difference of 4 to them and when you add them together you get 28. :)
Using the Poisson distribution, the probability of observing exactly three accidents on this stretch of road next month is given by:
b) 0.052.
<h3>What is the Poisson distribution?</h3>
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by:
![P(X = x) = \frac{e^{-\mu}\mu^{x}}{(x)!}](https://tex.z-dn.net/?f=P%28X%20%3D%20x%29%20%3D%20%5Cfrac%7Be%5E%7B-%5Cmu%7D%5Cmu%5E%7Bx%7D%7D%7B%28x%29%21%7D)
The parameters are:
- x is the number of successes
- e = 2.71828 is the Euler number
is the mean in the given interval.
Researching this problem on the internet, the mean is given by:
.
The probability of observing exactly three accidents on this stretch of road next month is P(X = 3), hence:
![P(X = x) = \frac{e^{-\mu}\mu^{x}}{(x)!}](https://tex.z-dn.net/?f=P%28X%20%3D%20x%29%20%3D%20%5Cfrac%7Be%5E%7B-%5Cmu%7D%5Cmu%5E%7Bx%7D%7D%7B%28x%29%21%7D)
![P(X = 3) = \frac{e^{-7}7^{3}}{(3)!} = 0.052](https://tex.z-dn.net/?f=P%28X%20%3D%203%29%20%3D%20%5Cfrac%7Be%5E%7B-7%7D7%5E%7B3%7D%7D%7B%283%29%21%7D%20%3D%200.052)
Hence option B is correct.
More can be learned about the Poisson distribution at brainly.com/question/13971530
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It would be option 4) 2 because the line is perpendicular hope this helps!!
Answer:
The angle bisector of < BAC.
Step-by-step explanation:
It is the angle bisector of < ABC.
First the arc is drawn Then the compass point is placed at the points where the arc cuts the lines BA and BC and the green arcs are drawn . The line from B to the point of intersection of the 2 green arcs is the bisector of the angle.