Consider event a and event b. what is the probability that event b occurs, given that event a has already occurred?

p(b a)
p(a) ∙ p(b)

p(b a)
p(a)

p(b a)
p(b)

p(b a)
p(b)

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

Could someone with number 1 and 2