A remote island in the Pacific Ocean is sometimes a nesting ground for turtles,

Question

A remote island in the Pacific Ocean is sometimes a nesting ground for turtles, but the turtles only come on average one year in three. Seabirds which cat turtle eggs may also nest on the island, but only if they see the turtles nesting. IV the turtles nest on the island, there is a 50-50 chance that the seabirds will too. What are the odds that both the turtles and the seabirds will nest on the island in the same year? You're an assistant for a purchasing manager at a large food processing company. He's asked you to get five bids for soy flour and to report back to you with both the mean and median bids. You get the bids and then calculate the mean and median Just after you finish the lowest price bidder calls you back and offers you an additional 10% price reduction. How will this change affect the mean and median you just calculated? both the mean and median will decrease. the mean will decrease, but the median will stay the same. the median will decrease, but the mean will stay the same. neither the mean nor the median will be affected

Explanation / Answer

P(A)= probability of turtle going to sea

P(B)= probability of sea bird going to sea

P(B|A)= probability of B given A is there

Chances of success= P(A)*P(B|A)

=1/3*1/2

=1/6

Chances of odds= proportion of success/failure

(1/6)/(5/6)= 1 in 5

option a

2) mean=total/5

As total is reduced mean will decrease

Median of 5 quotes will be 3rd highest quote. As lowest quote is reduced so there will be no impact on median.

option b

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