a medical college dean read that the average number of applications a potential medical school student sends is 7.6. she thinks that the mean is lower than 7.6. so she selects a random sample of 38 applicants and asks each how many medical schools they applied to. the mean of the sample is 7.4. the population standard deviation is 2.7

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

table 3 represents a direct variation function. : )

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.