pls help with hw question

The accompanying data represent the pulse rates (beats per minute) of nine students enrolled in a statistics course. Treat the nine students as a population. Complete parts (a) through (c). score Click the icon to view the data on the students' pulse rates. its (a) Compute the population standard deviation. o = beats per minute (Round to one decimal place as needed.) (b) Determine the sample standard deviation of the following three simple random samples of size 3. Sample 1: {Tammy, Clarice, Janette} Student Pulse Sample 2: {Megan, Janette, Kevin} Sample 3: {Perpectual, Kevin, Kathy} Perpectual Bempah Megan Brooks The sample standard deviation, s, of sample 1, {Tammy, Clarice, Janette), is beats per minute. Jeff Honeycutt (Round to one decimal place as needed.) Clarice Jefferson The sample standard deviation, s, of sample 2, {Megan, Janette, Kevin}, is beats per minute. Crystal Kurtenbach (Round to one decimal place as needed.) Janette Lantka The sample standard deviation, s, of sample 3, {Perpectual, Kevin, Kathy}, is beats per minute. Kevin Mccarthy / Dnund to and rinnimal non or nodad ) Tammy Ohm Kathy Wojdya 88 StatCrunch