Identify the symbols used for each of the following: (a) sample standard deviation; (b) population standard deviation; (c) sample variance; (d) population variance. a. The symbol for sample standard deviation is b. The symbol for population standard deviation is ▼ c. The symbol for sample variance is d. The symbol for population variance is ▼

Mario's weekly poker winnings have a mean of $353 and a standard deviation of $67. Last week he won $185. How many standard deviations from the mean is that?

A successful basketball player has a height of 6 feet 11 ​inches, or 211 cm. Based on statistics from a data​ set, his height converts to the z score of 5.17. How many standard deviations is his height above the​ mean?

Find the range, the standard deviation, and the variance for the given samples. Round noninteger results to the nearest tenth. 91, 78, 89, 70, 90, 75, 84, 98, 96, 79, 77 range       standard deviation       variance