Anyone that has revise wise for lc maths does it contain the further prob section?

eoins23456

For anyone that has the revise wise maths book for leaving cert higher does it have a section on further probability and statistics and is it any good?could one teach it to themselves?

BrokenHeels_Ox

i have it but i havent really looked at the options sections, it covers all four options but i couldnt tell ya if its easy to teach urself or not!

leavingcert

I've tried teaching myself, now i'm a B honours maths stdent and find it quite tricky to be honest with you, you kinda do need a teacher, plus it takes up so much time so close to the exams

eoins23456

Finally thought it to myself!well worth having an extra option on the day i hope!

G_R

yeah Revise Wise does have the Further Prob section

I think that Further Prob is by far the easiest of all the options, Its a question I reckon I can get a pretty easy B in. You would need a teacher tho I would say as there is some complicated stuff.

eoins23456

Yeah some bits are tricky alright but the question but ur using the same formulas over n over again n thats half ur marks:D

G_R

eoins23456 wrote: »

Yeah some bits are tricky alright but the question but ur using the same formulas over n over again n thats half ur marks:D

yeah defo, actually just did the last 6 years worth of further prob questions over the last day or so and its just the same formulas over and over

eoins23456

Yeah did the same ting yesterday!going to do the further calculas as my backup as well!..well i say this now.if i get arond to it sure

H2student

Might give it a shot myself, not a big fan of the further calculus option.

eoins23456

Bit confused with this question that was on the further probability question on examcraft mock.It says 95percent level of significance but usually it says 5 percent.gave the question a go anyway but kinda confused as to why they said 95.not sure if my solution is correct or way off.any help is much appreciated


The mean number of sweet contained in packets of sweets is stated by the manufacturer to be 96,with a standard deviation of 5.A sample of 100 packets was selected at random and found to have a mean packet content of 93 sweets. At the 95 percent level of significance,is there evidence to suggest that the mean number of sweets is less then 96?

My solution:
i said this is a one tailed test as its in a definite direction ie less then 96
93-96/5/square root of1oo=-3/.5=-6 which is less the -1.645
therefore reject null hypothesis.evidence there to suggest number of sweets is less then 96

Is this right or wrong?

MathsManiac

Tut, tut! Double posting. I've answered in the maths forum.