49. Equation A
50. Equation C
2.1 or 2. Hopefully this is right.
Answer:
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Probabilities are used to determine the chances of an event.
The probability of a student taking a yoga class or a pilate class i 0.79
The given parameters are:



The probability of Yoga or Pilate is:

Substitute known values


Hence, the probability of a student taking a yoga class or a pilate class i 0.79
Read more about probabilities at:
brainly.com/question/11234923