Answer:
the answer is negative numbers for 6
This kind of sampling is called the Cluster sampling. The cluster sampling method is done by dividing the population by groups called clusters. There will be an equal number of samples drawn from each cluster using simple random sampling. In here, the population are the students which are divided into clusters - by year level. 15 students will be selected from each cluster.
Answer:
The answer to this equation would be 3/35 in simplest form.
Step-by-step explanation:
To divide by a fraction, multiply by its reciprocal.
9
/14 ⋅ 2
/15
You then cross simplify 9 & 15 (can be divided by 3 to get 9=3 and 15=5)
This will then leave you with 3/14 & 2/5
Next, you cross simplify 14 & 2, (both can be divided by 2 to get 14=7 and 2=1)
This will then leave you with 3/7 & 1/5
Then multiply 
This will then leave you with your answer of 3/35.
I hope this helps! :)
Answer:
x = 0
Step-by-step explanation:

Expanding the left hand side we get

Taking 6 from left hand side to right hand side

Dividing both sides by 2

So, x = 0
Answer:
16/49
Step-by-step explanation:
4/7 ÷ 1 3/4
Convert 1 3/4 into an improper fraction
4/7 ÷ 7/4
Find the reciprocal of 7/4 and multiply
4/7 * 4/7
16/49
Hope this helps :)