Exercise releases endocrines, which are chemicals in your brain that make you feel good true or false

Glaucoma is an eye disease that is manifested by high intraocular pressure (iop). the distribution of iop measurements in the general population is approximately normal with mean 16 mm hg and standard deviation 3 mm hg. a random sample of 9 people is selected from the general population. the sample mean iop is 17.2 mm hg with a sample standard deviation of 3.9 mm hg. a) the mean of the sampling distribution of x is 16 mm hg. b) the standard deviation of the sampling distribution of x is 1.3 mm hg. c) the sample mean of every sample of size 9 will be 17.2 mm hg d) none of the answers are true. e) exactly 2 of the answers are true.

*edit* i took the test and i picked a and it was incorrect for its c! rank the following suggestions for preventing std, in order of increasing effectiveness. 1) using latex condoms properly 2) using spermicidal foam or jelly with a monogamous partner 3) abstaining from sexual intercourse and genital contact a. 1, 2, 3c. 2, 1, 3

Which of the following processes does the body not use protein to perform? a. repairing muscles b. producing hormones c. making hemoglobin d. creating amino acids