Find an equation in standard form for the ellipse with the vertical major axis of length 16 and minor axis of length 10. (5 points)
x squared divided by 5 plus y squared divided by 8 = 1
x squared divided by 25 plus y squared divided by 64 = 1
x squared divided by 8 plus y squared divided by 5 = 1
x squared divided by 64 plus y squared divided by 25 = 1

Is the response to the survey question "did you smoke in the last week question mark "response to the survey question "did you smoke in the last week? " a discrete random variable, a continuous random variable, or not a random variable?

Agroup of student volunteers participates in a study designed to assess several behavioral interventions for improving output in a repetitive task. prior to the beginning of the study, all volunteers unknowingly observed, and their output is measured. at the beginning of the study, prior to any intervention, the volunteers perform the same task under the observation of a study administrator, and their overall output increases. which of the following terms describes this phenomenon? a. simpson's paradox b. hawthorne effect are d. novelty effect d. pygmalion effect e. observer-expectancy effect

Which of the following is true about the following construction of a tangent to a circle from a point outside of the circle?