I have 3 questions here and the first two are answered and correct, i need the a
ID: 3181525 • Letter: I
Question
I have 3 questions here and the first two are answered and correct, i need the answer to the third question, use the ideas from the first two to help you understand the topic. I have calculated the expected table.
OBSERVED & Blue eyes & Not Blue eyes
Blonde Hair 39 86
Not Blonde Hair 90 273
EXPECTED Blue eyes Not Blue eyes
Blonde Hair 33.04 91.96
Not Blonde Hair 95.96 267.04
Question: If the two variables are independent, what would you estimate is the probability of observing exactly 39 blue eyed blonde haired people in a group of this size?
Question: If the two variables are independent, how many blue eyed blonde haired people would you expect in a group of this size?
Question: What is the probability of observing a number of blonde haired blue eyed people which is at least as far from expected as we did?
Answer: ????
39 86 348 125Explanation / Answer
OBSERVED & Blue eyes & Not Blue eyes
Blonde Hair 39 86 = 39+86 =125
EXPECTED Blue eyes Not Blue eyes
Blonde Hair 33.04 91.96 = 33.04+91.96=125
now from question we have probability of observing a number of blonde haired blue eyed people = 39/125
excpted probability = 33.04/125
so final probability =( 39/125)*(33.04/125 )
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