which of these is not a random sample that would be valid to determine the favorite food of students in your school?

a. five students at a local pizza parlor
b. Every sixth student on the attendance list
c. every tenth student entering school in the morning
d. three students from each lunch table in the lunchroom

explain your

Julia chooses a card at random from her set of cards. what is the probability that the card is labeled cat or hamster?

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Need 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.