Maths, Addmaths and Statistics: Post your doubts here!

[Bilal Khan]

I missed a whole year due to some problems, so i have no clue about some topics, so please have patience with me, i am quite dum in math, it gets annoying after some time

no problem,zainab.
u are improving.

 

[Bilal Khan]

right thanks

bye.
see ya later.

 

[zainabkhann]

right thanks

Its the wrong answer btw, just checked

 

[zainabkhann]

no problem,zainab.
u are improving.

haha thanks

 

[zainabkhann]

Its the wrong answer btw, just checked

the answer is 18

 

[hellcat]

STATS HELP
Sampling:
each of the 720 students has a four figure admission number. The girls have consecutive odd admin numbers starting at 2001 and the boys have consecutive even admin numbers starting from 2002 .
The school Head used a calculator to generate some random numbers to select students. The numbers were: 0.143 ,0.673 ,0.772, 0.081, 0.219 & 0.5
One of the six numbers that the school head obtained can't be used to select from the population.
a) state which one of the six numbers cannot be used, and explain why it cannot be used.
b) write down the admission numbers of the five selected students

Any body who can help?

 

[hellcat]

STATS HELP :
Probability :

A box contains black and white cou ters. The probability of of randomly selecting a black counter is 1/6.
1.Find a) the probability of randomly selecting a white counter,
b) the smallest possible number of white counters in the box.
Emily took 2 counters out of the box and both of them were black.
2. What is the smallest possible number of white counters that could be in the box?

Emily asked each of the teachers at her school to randomly select one of the counters from the box.
3. If 25 teachers selected a white counter, estimate the number if teachers at Emily's school




Plz....do help...I need an answer urgently
Thanks in advance

Help plz

 

[Bilal Khan]

Help plz

what help do u need??

 

[Bilal Khan]

Its the wrong answer btw, just checked

i know the right ans.

 

[zainabkhann]

Guys, can someone explain what does this mean: if the mirror line is in the x-axis, where is the x-axis and y-axis, i am getting confused, like how do i know when the triangle is in the x-axis or the y-axis. i knew it before but now i forgot. This is for reflection btw

 

[Bilal Khan]

Guys, can someone explain what does this mean: if the mirror line is in the x-axis, where is the x-axis and y-axis, i am getting confused, like how do i know when the triangle is in the x-axis or the y-axis. i knew it before but now i forgot. This is for reflection btw

by the image u can easily understand.so whats the problem??

 

[zainabkhann]

by the image u can easily understand.so whats the problem??

I want to know when do we know the shape of the (object) is in the x-axis or y-axis?

 

[zainabkhann]

by the image u can easily understand.so whats the problem??

Does it have to be in x or y quadrant, is this what they mean?

 

[Ikram Khaliq]

guys need some help on angle properties, in the chapter angle and circle properties. Can someone briefly explain to me what that is, i have no clue how to solve any question on that topic, and not even the notes that i find online seem to help me understand.

The key to maths is reading the books thoroughly. study the examples. they WILL help you a lot.

 

[hellcat]

what help do u need??

u told me u don't take stats..i have posted 2 questions above and i am begging for answers

 

[Bilal Khan]

Does it have to be in x or y quadrant, is this what they mean?

yes.it means the same.

 

[Bilal Khan]

u told me u don't take stats..i have posted 2 questions above and i am begging for answers

i can try to give answers.they could be wrong too.

 

[hellcat]

i can try to give answers.they could be wrong too.

i would appreciate ur help.....i just wanna check about my concept......i hope u will answer....

 

[Bilal Khan]

i would appreciate ur help.....i just wanna check about my concept......i hope u will answer....

ok

 

[Bilal Khan]

i would appreciate ur help.....i just wanna check about my concept......i hope u will answer....

u giving paper in nov??