Annabelle wanted to find out how many people in her neighborhood were going to the rock concert over the weekend. she asked a couple of her immediate neighbors. on the basis of the answers she got, she drew her conclusion. what kind of statistical investigation did annabelle perform? survey

Max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.