Probability that the questions are answered corectly1/4 = 0.25
probability that they are answered wrong 3/4 = 0.75
probability that 4 out of 7 are corect 7C4(0.25)4(0.75)3 which equals 0.0577

7 0

3 years ago

Over the first five years of owning her car, Gina drove about 12,200 miles the first year, 16,211 miles the second year, 12,050

kodGreya [7K]

I think it is a or b for answer

4 0

3 years ago

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Write an expression that represents the quotient of r and 3

elena-s [515]

Quotient means divide, so the expression would be r/3, I believe

hope it helps

5 0

3 years ago

Andrew bought supplies for the office. He bought memo pads that cost $17.96 and computer paper that cost $45.67. How much change

Paha777 [63]

45.67 + 17.96 = 63.63

100 - 63.63 = 36.37

Andrew should get back $36.37

6 0

3 years ago

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