The probability of an event happening can be found by finding the ratio of the number of ways an event can happen and the number of possible

outcomes

Explanation:

Probability is the study of experiments that, even when performed in very similar conditions, present results that are not possible to predict. For example, the expensive or crown experiment, even repeated, can not be predicted, since each time the coin is launched, the result may be different.

Probability associates numbers with the chances of a certain outcome happening, so that the higher that number, the greater the chance of that result occurring.  

In other words,  the probability of an event happening can be found by finding the ratio of the number of ways an event can happen and the number of possible outcomes.

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

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