The sound off siren company tests every fifth siren for sound quality and every eighth siren for mechanical quality. the daily output is 350 sirens. what percentage is tested for mechanical quality? what percent is tested for both types of quality at the same time?

Find two numbers if their sum is 91 and the ratio is 6: 7?

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average

How many degrees are there in the central angles in a circle