Ariel wants to find out the most popular theme for spirit week at school. She cannot decide between two methods Option 1: She will poll each student who leaves the gym after sports practice. Option 2: She will randomly poll three students from each first-period class. Which statement about the methods is true?
A: Option 1 is biased.
B: Option 2 is biased.
C: Neither is biased
D: Both are biased​

Now 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.

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.

Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions.