1. free-throw shooting contest
student total
michael 26
sara 34
kelly 42
david 40
juwon 38
seung 35
miguel 20
maria 34
curt 45
jake 18

coach king is holding a free-throw shooting contest for some students in his pe class. the students participating in the contest shoot 50 free throws each. the results are shown in the table. what is the mean of the data?
a) 24
b) 27
c) 33.2
d) 34.5

2. which measure of central tendency best represents the data shown in the distribution?
a) mean
b) median
c) mode
d) all three

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Cor d? ? me ? 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.

The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?