(
assessment practice
expre
a po
(12. the oldest rocks on earth are about
4 x 10º years old. for which of these ages
could this be an approximation? s. ee 13
ⓡ 0.4 years
® 3.45 x 109 years
© 3.34 x 10 years
☺ 4,149,000,000 years
bo

The total number of students in gina’s after-school program is .the number of students who have 4 or more siblings is .reset next

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.

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?