You have found the following ages (in years) of 4 zebras. Those zebras were randomly selected from the 45 zebras at your local zoo:
14, 15, 9, 1
Based on your sample, what is the average age of the zebras?
What is the standard deviation?
Round your answers to the nearest tenth.
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (rayep12):
Average age____
Standard deviation_____
OpenStudy (partyshotz2409):
do you know how to find the average or in other words mean
OpenStudy (rayep12):
yeah
OpenStudy (partyshotz2409):
ok so find the average if this numbers
OpenStudy (partyshotz2409):
14+15+ 9+ 1 = what
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (partyshotz2409):
29
OpenStudy (partyshotz2409):
so 29/4
OpenStudy (partyshotz2409):
which is 7.25
OpenStudy (partyshotz2409):
now we have to find the deviation
OpenStudy (rayep12):
lol okay
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (partyshotz2409):
6.75, 7.75, 1.75 and 6.75
OpenStudy (partyshotz2409):
so find the mean of those
OpenStudy (rayep12):
um 23
OpenStudy (partyshotz2409):
no
OpenStudy (partyshotz2409):
add all of them then divide by 4
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (rayep12):
5.75
OpenStudy (partyshotz2409):
ok then round the tenths place
OpenStudy (rayep12):
5.8
OpenStudy (partyshotz2409):
yes that is your answer
OpenStudy (rayep12):
do i round for the mean too?
Still Need Help?
Join the QuestionCove community and study together with friends!