A team of scientists is trying to put tracking chips on whales. On any given trip, they are able to find a whale about 80% of the time, and when they do find a whale, there is a 60% chance that they will be able to successfully attach the tracking device. What is the probability that the team will find a whale but not attach a tracking device on any given trip. a. 32% b. 48% c. 12% d. 50% e. 20%

answer: what equations are there

step-by-step explanation:

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

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answer: d.) the total number of protons and neutrons is 15

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