Find the probability p(e or f) if e and f are mutually exclusive, p(e)=0.30, and p(f)=0.45.
the probability of p(e or f) is

Probabilities are used to determine the chances of an event.

The probability of P(E or F) is 0.75

The parameters are given as:

So, the equation becomes

Hence,  the probability of P(E or F) is 0.75

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P(E or F) = 0.75

Step-by-step explanation:

Given;

P(E)=0.30

P(F)=0.45

We need to find probability of P(E or F).

Now by General theorem of probability addition theorem:

P(E or F) = P(E) + P(F) - P(E and F)

For mutually exclusive events, P(E and F) = 0

So, P(E or F) = P(E) + P(F) =

Hence P(E or F) = 0.75

hi, i am not sure about this one but i think its d,

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step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !