Albeno69 (stupid) further questions!

[milkcarton]

Hi Albeno69,
                 Look at the dot plot and record the frequency of hours watching TV in your calculator in list 1.  0, 0,0,1,1,2,2,2,2,3,3,4,4,5. Then calculate 1-variable statistics. You should see the mean as x = 2.1 and standard deviation as Sx = 1.6.

(Done on a TI-84 calculator, I don't know what to do for Nspire)

[Albeno69]

Hi Albeno69,
                 Look at the dot plot and record the frequency of hours watching TV in your calculator in list 1.  0, 0,0,1,1,2,2,2,2,3,3,4,4,5. Then calculate 1-variable statistics. You should see the mean as x = 2.1 and standard deviation as Sx = 1.6.

(Done on a TI-84 calculator, I don't know what to do for Nspire)

ok thanks i was doing it totally wrong.

[Albeno69]

another stupid question,
how do they get the answer for question 6 business maths for 2008 vcaa multi choice?

[LFTM]

I don't do this module but i think i know how it works.
Sam will earn 0.075x5000=375   375x3=1125
Charlie will earn 0.075x5000=375
(375+5000)x0.075=403.125
5778.125x0.075=433.36
375+403.125+433.36=1211.49

1211.49-1125=86.48

So, it's A.

[Albeno69]

ok i dont know why this is confusing me but it is.
im doing networks and cant seem to get my head around crashing.
can someone give me a quick explanation?
is it to do with making another critical path?

[Albeno69]

ok i dont know why this is confusing me but it is.
im doing networks and cant seem to get my head around crashing.
can someone give me a quick explanation?
is it to do with making another critical path?

Bump

[mmmmm]

Hi Albeno69,
                 Look at the dot plot and record the frequency of hours watching TV in your calculator in list 1.  0, 0,0,1,1,2,2,2,2,3,3,4,4,5. Then calculate 1-variable statistics. You should see the mean as x = 2.1 and standard deviation as Sx = 1.6.

(Done on a TI-84 calculator, I don't know what to do for Nspire)

Sorry i've got a CAS calculator.  But i think it's basically the same time.  Is there another way of doing this rather than typing each number repetitively?  Because what if the frequency is 40 etc :/

[shokstar]

Yeh, just put the data in one column, then put the frequencies of each in the next column, then do one-variable statistics>and when your choosing your x list, theres a category called 'frequency list', make that the column you put your frequencies in, and thats it!

[mmmmm]

Yeh, just put the data in one column, then put the frequencies of each in the next column, then do one-variable statistics>and when your choosing your x list, theres a category called 'frequency list', make that the column you put your frequencies in, and thats it!

OMG. THANK YOU SO MUCH! I've been trying to do this for ages!