Aresearcher is using a chi-square test for independence to evaluate the relationship between birth-order position and self esteem. each individual is classified as being 1st born, 2nd born, or 3rd born, and self-esteem is categorized as either high or low. for this study, what is the df value for the chi-square statistic? a. 1 b. 2 c. 3 d. 4

Evaluate cos2θ for cosθ = square root of 3/2

Iwill give brainliest. suppose tommy walks from his home at (0, 0) to the mall at (0, 5), and then walks to a movie theater at (6, 5). after leaving the theater tommy walks to the store at (6, 0) before returning home. if each grid square represents one block, how many blocks does he walk?

Someone answer this asap for gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a. gabriella averages 7.5 u.s. dollars for every 100 euros. b. gabriella averages 100 u.s. dollars for every 25 euros. c. gabriella can exchange 75 u.s. dollars for 100 euros. d. gabriella can exchange 100 u.s. dollars for 75 euros.