Which is the value of this expression when a = 5 and k = negative 2? (StartFraction 3 squared a Superscript negative 2 Baseline Over 3 a Superscript negative 1 Baseline EndFraction) Superscript k
StartFraction 1 Over 75 EndFraction
StartFraction 9 Over 25 EndFraction
StartFraction 25 Over 9 EndFraction
75

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In a recent telephone survey, 5,000 randomly selected teenagers were asked to cite their primary social network site. six of 10 teenagers said they use mybook as their primary social network site. a 95% confidence interval to estimate the true proportion of teenagers who use mybook as their primary social network site is found to be (0.2964, 0.9036). which of the following is a correct interpretation of the confidence level? ninety-five percent of all samples of this size would yield a confidence interval of (0.2964, 0.9036). there is a 95% chance that the true proportion of teenagers who use mybook as their primary social network site is in the interval (0.2964, 0.9036). ninety-five percent of the time, the procedure used to generate this interval will capture the true proportion of teenagers who use mybook as their primary social network site. ninety-five percent of all the samples of size 5,000 lie in the confidence interval (0.2964, 0.9036).

Which of the following would be a good probing question to ask in the following scenario? interviewer: did you last job? interviewee: yeah, it was great. “what was your favorite part about it? ” “how long were you there? ” “what appeals to you most about this position? ” none of the above