Scores on a test have a mean of 67 and Q3 is 85. The scores have a distribution that is approximately normal. Find the standard deviation. Round your answer to the nearest tenth.

Suppose a ball is dropped fromca height of 6ft. it bounces back up but time it bounces, it reaches only 7/10 of its pervious height. what is the total of each height that the ball reaches after 5 bounces

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours