A zoologist collected wild lizards in the Southwestern Unite…

A zoologist collected wild lizards in the Southwestern United States. Thirty lizards from the genus Phrynosoma were placed on a treadmill and their speed measured. The recorded speeds (meters/second) (the fastest time to run a half meter) for thirty lizards are summarized in the relative histogram below. About how many lizards had recorded speeds above 1 meters/second? Fill in the numerical value.

Based on data from USA Today, the following are the results…

Based on data from USA Today, the following are the results from tests of an experiment to test the effectiveness of a vaccine for children. Suppose a child from this population will be randomly selected. What is the probability that the child belongs to the placebo group?