The Moon Illusion refers, roughly speaking, to the common experience that the moon appears larger (and closer to us) when it is near the horizon than when it is at its zenith. To investigate, we have designed an experiment in which participants must adjust the diameter of a variable circular light placed at eye level to match the diameter of a fixed circular light placed well above eye level. (See, for example, Kaufman, L. & Rock, I. (1989), "The moon illusion thirty years later," chapter 8 in M. Hershenson (Ed.) The Moon Illusion, Hillsdale, NJ: L. Earlbaum.) We have tested 25 participants and recorded for each participant her experimental "adjustable/ fixed ratio." Our data are summarized in the following histogram. Frequency 0 10 8+ 6+ 4. 2+ 0 0 3 0.20 6 9 0.40 0.60 Adjustable/ fixed ratio 4 X 0.80 Based on the histogram, find the proportion of adjustable/ fixed ratios in the sample that are greater than or equal to 0.20. Write your answer as a decimal, and do not round your answer. S 3 1

This question is from data structures and alghorithms.

question 4

Question 3 10 pts Use the information provided to answer Part A and Part B. Justify your answer using the CER method for part A as follows: Claim - The y - coordinate of the center of the circle is Evidence - Show work used to solve for/find the y coordinate. Reasoning - Use the work you showed in "Evidence" to justify your "Claim". Come up with your own CER response for part B. The equation x² + y² - 4x + 2y = b describes a circle. Part A Determine the y-coordinate of the center of the circle. Enter your answer in the box. Part B The radius of the circle is 7 units. What is the value of b in the equation? Enter your answer in the box. Edit View Insert Format Tools Table 12pt v Paragraph v BI U >

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7. Which of the following measurements in the diagram below would ensure that US is parallel to VR ? (1) TS = 7, SR = 14, TU = 8, and UV =15 (2) TS =14, SR = 35, TU = 24 , and UV = 60 (3) TS =10, SR = 35, TU = 15, and UV = 6 (4) TS =18, SR = 24, TU = 24, and UV = 30

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