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3 years ago

Eva tried to evaluate an expression step by step.

Mathematics

1 answer:

Rudiy273 years ago

7 0

Answer:

c. step three

Step-by-step explanation:

CORRECT WAY

step one: -7/ -2 / 4/9 (flip 4/9)

step two: -7/-2 * 9/4 (simplify)

step three: = 63/8

Step three is incorrect because it's not - it's positive.

She forgot that a negative divided by a negative is a positive.

So -7/-2 is the same as 7/2

Hope this helps ya!!!

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Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

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In which

P(B|A) is the probability of event B happening, given that A happened.

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