Question 61 point 5. Of the 30 girls who tried out for the lacrosse team
at Euclid Middle School, 12 were selected. Of the
40 boys who tried out, 16 were selected. Are the ratios
of the number of students on the team to the number of
students trying out the same for both boys and girls?
How do you know?
I

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?

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Write the fraction or mixed number and the decimal shown by the model