SOMEONE help! The CORRECT answer gets brainliest! Eight trials are simulated. The results are shown in the table.

Simulation
109 105 112 110
115 106 108 109

What is the estimated margin of error, using standard deviation?

Enter your answer, rounded to two decimal places, in the box.
± ___

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

Simplify the expression below -3(10x+4y)+6(6x-2y)

According to a study done by de anza students, the height for asian adult males is normally distributed with an average of 66 inches and a standard deviation of 2.5 inches. suppose one asian adult male is randomly chosen. let x = height of the individual. a) give the distribution of x. x ~ b) find the probability that the person is between 64 and 69 inches. write the probability statement. what is the probability?