A psychology professor flashed a pair of head shots before subjects and asked them to identify the face that displayed more competence. The subjects didn't know it, but the
head shots were the two opposing candidates in 600 recent House of Representative
elections. It turned out that 66.8% of the candidates who were perceived as more
competent by the subjects were winners in the election. The article says that the
statistical test used "tests and proportion of correctly predicted races against the chance
level of 50%."

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

560

hope this : )

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step-by-step explanation: