The table gives information about the times taken, in minutes, by 22 students to cycle a race.
Time (t minutes) Frequency
15 4
20 1
25 7
30 10
Work out an estimate for the mean time.
Give your answer in minutes and correct to 3 significant figures.
+

The way individuals think, believe, and behave defines their: a. intellectual wellness b. personality c. self-esteem d. self-actualization

What are the five categories of my plate

In an ecosystem, marsh snails feed on phytoplankton and painted turtles feed on marsh snails. pollution has resulted in the depletion of phytoplankton. what effect would this situation likely have on the population of marsh snails and painted turtles? as phytoplankton were destroyed, the population of marsh snails would most likely then the population of painted turtles would mostly likely a. 1. increase 2. decrease 3. stay the same b. 1. increase 2. decrease 3. stay the same