A study shows that 35% of the fish caught in a local lake had high levels of mercury. Suppose that 10 fish were caught from this lake. Find to the nearest tenth of a percent, the probability that at least 8 of the 10 fish caught did not contain high levels of mercury.

Question

anonymous · Answer

(10C8)[(0.65^8)(0.35^2)]  +
(10C9)[(0.65^9)(0.35^1)]  +
(10C10)[(0.65^10)(0.35^0)]

This is a cumulative probability where you have to find the probability of 8 and 9 and 10 and add them together.

You have to use the binomial theorem where 0.65 is the population probability of "not high levels of mercury" and 0.35 is the probability of "high levels of mercury".

anonymous · Answer

All good now, @shaq2341 ?

anonymous · Answer

yeaaa

anonymous · Answer

Good luck to you in all of your studies and thx for the recognition! @shaq2341