Hello I’m trying to solve it with the simplified version my professor showed but my answer is wrong. Can someone please help
#Standard deviation help
quaint palm
true quailBOT
tawdry ember
Hello I’m trying to solve it with the simplified version my professor showed but...
hello, so if you have a ti 84 type caculator i prefer to enter the data set into it by using stats button and click edit then insert the numbers
then after click calac and it gives the mean median standard devation,etc
its better than if you use the formula
its an easier way
quaint palm
she is requiring us to show work on the test so i to learn it
but ill try to learn that way as well
tawdry ember
i actually don’t really know the formula because my teacher didn’t really emphasize it for a test but she did go through this topic, so you might have to need someone else to help you out in order to break down the formula and stuff
quaint palm
okay i see 🫠😔
shadow bear
I see the calculation mistake
desert tusk
Hello I’m trying to solve it with the simplified version my professor showed but...
Did you verify with a calculator there can be a calc error too right?
shadow bear
√[(385-336.1)/8]
Nvm, I'm wrong there, ignore that.
quaint palm
yeah i check my calculations its still the same
shadow bear
√[(384-324)/8]
quaint palm
may i see how u did it in the calculator
shadow bear
2,3,4,5,6,7,8,9,10 their sum is 54
According to your formula-
54×54/9=2916/9=324
√(60/8)≈2.7
warm ginkgo
You need to do the squares before the sum, remember order of operations. For example: $(2+3)^2=5^2=25$ but $2^2+3^2=4+9=13$
vast spearBOT
Aza
tawdry ember
I WAS DIVIDING BY 8
yea dividing by 8 is for the mean/median??
quaint palm
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