Maths Questions HELP

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as Salam Alaykum,

Just need help with this I'm clueless:

These are the terms and I have to connect them with the meaning:

Quota Sampling, Systematic Sampling, Convenience Sampling, Simple Random Sampling.

1/In this type of sampling, every member of the population has an equal chance of being selected. A random number table may be used to select the sample.

2/This method of sampling is often used in market reseach. The interviewer questions a certain number of people. The people could be of a certain age, gender or social class. The interview chooses the sample of people to be asked.

3/The sameple is chosen in the simplest possible way. Forexample, a company is researching the popularity of different brands of cola. An interviewr stands inside a supermarket and asks 100 customers for their preferences.

4/In this type of sampling, every member of the sample is chosen at regular intervals from a list.
 
:wasalamex


Quota Sampling, Systematic Sampling, Convenience Sampling, Simple Random Sampling.


1/In this type of sampling, every member of the population has an equal chance of being selected. A random number table may be used to select the sample.

2/This method of sampling is often used in market reseach. The interviewer questions a certain number of people. The people could be of a certain age, gender or social class. The interview chooses the sample of people to be asked.

3/The sample is chosen in the simplest possible way. Forexample, a company is researching the popularity of different brands of cola. An interviewr stands inside a supermarket and asks 100 customers for their preferences.

4/In this type of sampling, every member of the sample is chosen at regular intervals from a list.


-------------


I did Statistics in college, and got an A, Alhamdulillah. So I think that is right inshaaAllaah. I'll try and explain it:


Quota = [SIZE=-1]a prescribed number;

Systematic = regular intervals

Convinience = they want to ask about cola, so they stand outside a supermarket from where people are likely to know about it

Simple random = everyone has a chance as it is random

[/SIZE]
 
Last edited:
- Serene - said:
:salamext:

Quota Sampling, Systematic Sampling, Convenience Sampling, Simple Random Sampling.

1/In this type of sampling, every member of the population has an equal chance of being selected. A random number table may be used to select the sample.

2/This method of sampling is often used in market reseach. The interviewer questions a certain number of people. The people could be of a certain age, gender or social class. The interview chooses the sample of people to be asked.

3/The sample is chosen in the simplest possible way. Forexample, a company is researching the popularity of different brands of cola. An interviewr stands inside a supermarket and asks 100 customers for their preferences.

4/In this type of sampling, every member of the sample is chosen at regular intervals from a list.

-------------

I did Statistics in college, and got an A, Alhamdulillah. So I think that is right inshaaAllaah. I'll try and explain it:

Quota = [SIZE=-1]a prescribed number;

Systematic = regular intervals

Convinience = they want to ask about cola, so they stand outside a supermarket from where people are likely to know about it

Simple random = everyone has a chance as it is random

[/SIZE]
Click to expand...
Wa alaykum salam wa rahmatullahi wa barakatuh

Wanna help with the rest of my paper? Gotta be in on Tuesday :(
 
:salamext:

Lol, did u understand what I said though? The way I explained it?
 
- Serene - said:
:wasalamex


Quota Sampling, Systematic Sampling, Convenience Sampling, Simple Random Sampling.


1/In this type of sampling, every member of the population has an equal chance of being selected. A random number table may be used to select the sample.

2/This method of sampling is often used in market reseach. The interviewer questions a certain number of people. The people could be of a certain age, gender or social class. The interview chooses the sample of people to be asked.

3/The sample is chosen in the simplest possible way. Forexample, a company is researching the popularity of different brands of cola. An interviewr stands inside a supermarket and asks 100 customers for their preferences.

4/In this type of sampling, every member of the sample is chosen at regular intervals from a list.


-------------


I did Statistics in college, and got an A, Alhamdulillah. So I think that is right inshaaAllaah. I'll try and explain it:


Quota = [SIZE=-1]a prescribed number;

Systematic = regular intervals

Convinience = they want to ask about cola, so they stand outside a supermarket from where people are likely to know about it

Simple random = everyone has a chance as it is random

[/SIZE]
Click to expand...

Yo! sister can you do my assignments pleeeeaase...just messing, mashallah an A* for statistics :)
 
:salamext:

^ Try and attend the classes now inshaAllaah...lol it's not as boring as you think...
 
- Serene - said:
:salamext:

^ Try and attend the classes now inshaAllaah...lol it's not as boring as you think...
Click to expand...

Wa Alaykum Salam Wa Rahmatullahi Wa Barakatuh,

I wasn't feeling good that's why I couldnt attend, and we have no more classes now. Yay.
 
:salamext:

Lol Khayr inshaaAllaah, ask if you need any more help.
 
Maths-1.jpg


(i) What is the probability that Peter gets two heads?
(ii) What is the probability that peter gets two tails?
 
i- .49
ii- .09
?
I think...
Math isn't one of my strong points, but I'm giving it a guess anyway!:P

edit- shall I explain how I got that?
 
:salamext:

The probability that the coin lands heads is 0.7. Peter throws the coin twice.

(i) What is the probability that Peter gets two heads?

0.7 x 0.7 = 0.49

(ii) What is the probability that peter gets two tails?

0.3 x 0.3 = 0.09


------------


Make dua for me. Assalamu Alaikum.
 
crayon said:
i- .49
ii- .09
?
I think...
Math isn't one of my strong points, but I'm giving it a guess anyway!:P

edit- shall I explain how I got that?
Click to expand...

Erm yea explain, cos I dont even get the 0.7 they give.

Edit:I get it, you took 0.7 and times it by itself?

Then took the remaining from 0.7 to 1 which is the tails which is 0.3 and then times it by itself?


WOOOOHOOOOO Takbir! I hear Ali may Allah be pleased with him was good at maths.
 
Last edited:
Probability of getting:
Head = 0.7
Tail = 0.3

Say he got head first, and than a another head if so probability would be 0.7 multiplied by 0.7 = 0.49

For two tails simply multiply 0.3 to 0.3 = 0.09

Hope thats correct
 
Al Habeshi said:
Erm yea explain, cos I dont even get the 0.7 they give.

I get it, you took 0.7 and times it by 2?

Then took the remaining from 0.7 to 1 which is the tails which is 0.3 and then times it by two?
Click to expand...

Probability is measured from 0 to 1.

0 being there is no probability that it occurs and 1 being the that the event would definitely occur.

0.7 is the chance or probability that the coin would land on its head when it is tossed. And we derive the probability of it landing on its tail by simply subtracting 0.7 from 1 .
 
- Serene - said:
:salamext:

The probability that the coin lands heads is 0.7. Peter throws the coin twice.

(i) What is the probability that Peter gets two heads?

0.7 x 0.7 = 0.49

(ii) What is the probability that peter gets two tails?

0.3 x 0.3 = 0.09
Click to expand...

You want me to explain how I got that?
 
- Serene - said:
You want me to explain how I got that?
Click to expand...

Al Habeshi said:
Erm yea explain, cos I dont even get the 0.7 they give.

Edit:I get it, you took 0.7 and times it by itself?

Then took the remaining from 0.7 to 1 which is the tails which is 0.3 and then times it by itself?


WOOOOHOOOOO Takbir! I hear Ali may Allah be pleased with him was good at maths.
Click to expand...

I got it right yea? If not then explain please.
 

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