Mathematics: Post your doubts here!

[abdul moeed rana]

give link ill see if i can help

http://maxpapers.com/syllabus-materials/mathematics-9709-a-level/attachment/9709_s14_qp_63/

 

[abdul moeed rana]

jst like u calculate sd normally. thts it.

q5 part 2

 

[abdul moeed rana]

jst like u calculate sd normally. thts it.

hurry please

 

[RoOkaYya G]

q5 part 2

convert normal into binomial.
work it out normally as other numbers
within 1 sd of mean means the values from mean (line of symmetry of graph of normal distribution) to +1 and -1 range on x axis of the graph

 

[abdul moeed rana]

mean - sd(1)<X<mean +sd(1) divided by s,d i.e 1???

 

[RoOkaYya G]

mean - sd(1)<X<mean +sd(1) divided by s,d i.e 1???

It jst meant tht the answer shld be in range of (+-1) of the mean value -_-

sd is not 1 here. u shld calculate. or its given there i guess.

 

[abdul moeed rana]

It jst meant tht the answer shld be in range of (+-1) of the mean value -_-

sd is not 1 here. u shld calculate. or its given there i guess.

i hav now done it.s,d given is 1.76.so ( mean-1.76)-mean divided by sd + the one with plus
now i get it

 

[abdul moeed rana]

It jst meant tht the answer shld be in range of (+-1) of the mean value -_-

sd is not 1 here. u shld calculate. or its given there i guess.

hey one more thing <10 wat will be its mid value

 

[RoOkaYya G]

i hav now done it.s,d given is 1.76.so ( mean-1.76)-mean divided by sd + the one with plus
now i get it

at last

 

[RoOkaYya G]

hey one more thing <10 wat will be its mid value

its for cumulative or bar chat n stuff?

 

[abdul moeed rana]

at last

how we know wats the mid value ?wat is before <10.... 0?

 

[abdul moeed rana]

its for cumulative or bar chat n stuff?

yesss

 

[RoOkaYya G]

its the last value in the table right?
so u take the class width of the one before the last value in table.
then estimate it as the classwidth of the last of (<10) then carry out with boundary values.

 

[abdul moeed rana]

its for cumulative or bar chat n stuff?

so u all prepared for the paper 2morrow

 

[abdul moeed rana]

no

its the last value in the table right?
so u take the class width of the one before the last value in table.
then estimate it as the classwidth of the last of (<10) then carry out with boundary values.

no its the first value,after it is <20

 

[abdul moeed rana]

i took 0 to 10

 

[abdul moeed rana]

will it be 0-10 or greater wqual to 0 to <10??

 

[abdul moeed rana]

sometimes the mid value is 4.5 n sometimes 5??i want to know when is when,the mid value!

 

[RoOkaYya G]

so u all prepared for the paper 2morrow

not even revised yet. ill do it tomorrow. too tired for today. had p3 bio today :S

 

[RoOkaYya G]

sometimes the mid value is 4.5 n sometimes 5??i want to know when is when,the mid value!

depends on the boundary value of the other values in the table.