OF RATIOS Lesson 3 Exercises For Exercises 1-3, determine if y is proportional to x. Justify your answer. 1. The table below represents the relationship of the amount of snowfall (in inches) in 5 counties to the amou time (in hours) of a recent winter storm. 2 Time (h) 2 у Snowfall (in.) 10 12 16 5 6 8 2.5 7 14

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Step-by-step explanation:

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answer: 180

step-by-step explanation:

12-2=10

20-2=18

10x18=180

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560