Mathematics: Post your doubts here!

[ThePacifics]

is the first question on kinematics?

nope work done thingy

 

[haithsoul]

nope work done thingy

then i did 43 component

 

[ThePacifics]

then i did 43 component

oh!

 

[Ahmed kooheji]

Anyone had statistics exam p72 ? How was it

 

[armeena]

oh!

My paper was good what did you get for mew? 0.577???

And if you remember your answer to the second question, for P?

 

[haithsoul]

did anyone get the question on final velocity using energy method? and was the answer 2. something metre per second

 

[ThePacifics]

My paper was good what did you get for mew? 0.577???

And if you remember your answer to the second question, for P?

om yes same

 

[Tauqir_hamed]

here are some of my answers for paper 72
1 ) i ) 0.359
2) A follows Normal ( 6 , 4.8 ) , B follows normal ( 6 , 2.4 )
3) confidence interval = 48.7 , 55.3
ii ) width would be less
4) u = 496 , Var = 12. sth
ii) z value came out be sth like -2.04
the null hypothesis wasn't rejected

5) b = 2/a
a = 1.5
6) a ) accidents occur randomly, independently
b ) 0.134
c ) 0.158
d ) 0.952
7) a ) 1- P ( X <=3 ) , came out to be sth like 0.05... ., which is less than 1 % . so null hypothesis not rejected
b ) P ( Type II error ) = 0.254

 

[Pradipta Debnath]

Anyone had statistics exam p72 ? How was it

Hey there! Yes I did. It was good but I fear that the grade threshold will be very high this time.

 

[Pradipta Debnath]

here are some of my answers for paper 72
1 ) i ) 0.359
2) A follows Normal ( 6 , 4.8 ) , B follows normal ( 6 , 2.4 )
3) confidence interval = 48.7 , 55.3
ii ) width would be less
4) u = 496 , Var = 12. sth
ii) z value came out be sth like -2.04
the null hypothesis wasn't rejected

5) b = 2/a
a = 1.5
6) a ) accidents occur randomly, independently
b ) 0.134
c ) 0.158
d ) 0.952
7) a ) 1- P ( X <=3 ) , came out to be sth like 0.05... ., which is less than 1 % . so null hypothesis not rejected
b ) P ( Type II error ) = 0.254

OMG I think we have almost exactly the same answer except 6 a where I wrote only random since it asked for 1 condition

 

[Ahmed kooheji]

here are some of my answers for paper 72
1 ) i ) 0.359
2) A follows Normal ( 6 , 4.8 ) , B follows normal ( 6 , 2.4 )
3) confidence interval = 48.7 , 55.3
ii ) width would be less
4) u = 496 , Var = 12. sth
ii) z value came out be sth like -2.04
the null hypothesis wasn't rejected

5) b = 2/a
a = 1.5
6) a ) accidents occur randomly, independently
b ) 0.134
c ) 0.158
d ) 0.952
7) a ) 1- P ( X <=3 ) , came out to be sth like 0.05... ., which is less than 1 % . so null hypothesis not rejected
b ) P ( Type II error ) = 0.254

YESSSSS EVERYTHING CORRECT !! Ahh thank u .. I bet the threshold might be 43 or like 44 out of 50 for A

 

[fatima_jawed]

My paper was good what did you get for mew? 0.577???

And if you remember your answer to the second question, for P?

P was 10.5 N
mew was 0.577


Do you remember your answer for the last pulley question last part?

 

[ThePacifics]

P was 10.5 N
mew was 0.577


Do you remember your answer for the last pulley question last part?

i dont think P was 10.5? It was much bigger than that. we had to use the 'P is 2 times the least possible P'
for the pulley i got the a= 3 and put the value in for T.
the next last part I got 2.14 m as the total distance since had to find the new acceleration with the friction

 

[ThePacifics]

wait a

i dont think P was 10.5? It was much bigger than that. we had to use the 'P is 2 times the least possible P'
for the pulley i got the a= 3 and put the value in for T.
the next last part I got 2.14 m as the total distance since had to find the new acceleration with the friction

HOLD UP yall talking about which P there were 2 p's i guess. the first question's P was 10.5 yes sorry lol

 

[ThePacifics]

My paper was good what did you get for mew? 0.577???

And if you remember your answer to the second question, for P?

second question had huge numbers, i dont remember it but its was around 3500kW something?

 

[haithsoul]

anyone did variant 43 come on man

 

[fatima_jawed]

i dont think P was 10.5? It was much bigger than that. we had to use the 'P is 2 times the least possible P'
for the pulley i got the a= 3 and put the value in for T.
the next last part I got 2.14 m as the total distance since had to find the new acceleration with the friction

Ah that P
Sorry xD
I thought you meant another question
For that P value I got 115.something

 

[fatima_jawed]

i dont think P was 10.5? It was much bigger than that. we had to use the 'P is 2 times the least possible P'
for the pulley i got the a= 3 and put the value in for T.
the next last part I got 2.14 m as the total distance since had to find the new acceleration with the friction

Ayyy I got 2.1 too

 

[ThePacifics]

Ah that P
Sorry xD
I thought you meant another question
For that P value I got 115.something

exactly yes XD i got both of them same. what about other questions what did u do for that prove acceleration is 3 m/s^2

 

[ThePacifics]

Ayyy I got 2.1 too

have u checked your answers with your batch tho I hope we are correct