20 points!
which of these is an example of a non-random sample?
out of all the seventh grade students in a public school district, fifteen are chosen to win a trip to a vacation destination.
at a school assembly, five students are randomly chosen to receive free admission to a theme park.
airline passengers to orlando, florida, are asked about vacation plans.
registered voters in arizona are surveyed to determine if they have relatives in florida.

Someone answer asap for ! 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.

Someone which statements are true? check all that apply.

Write 5 in the form of a/b using integers to show it as a rational number