The widget factory is pulling items from each batch to test them for quality control. twenty-four items are pulled randomly from each batch regardless of the size of the batch. a manager records the percentage and the size of the batch in a log. which of these could be recorded in the log

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

The measure of angle 0 is 600 degrees

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *