Mr. O'Lear is conducting an experiment that involves 10 plants. He initially determined that the plants had a mean height of 72 centimeters and a mean absolute deviation of 8.5 centimeters. He later discovered that he made two errors in the height measurements of two plants. The table shows the incorrect and the correct measurements of the two plants. a) What is the correct mean height of the 10 plants? b) What is the correct mean absolute deviation of the 10 plants?

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

Which of the following graphs could represent a cubic function?

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