Mike observed that 75% of the students of a school liked skating. if 35 students of the school did not like skating, the number of students who liked skating was (only put numeric values, no other symbols)

Evaluate the expression for the given value of the variable 7a - 4a for a =8

Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?

Arandom sample of 45 observations results in a sample mean of 68. the population standard deviation is known to be 23 a. compute the margin of error at a 959% confidence interval. b. compute the 95% confidence interval for the population mean c. compute the 90% confidence interval for the population mean. d. compute the 75% confidence interval for the population mean