Answer:
Cluster sampling.
Step-by-step explanation:
Samples may be classified as:
Convenient: Sample drawn from a conveniently available pool.
Random: Basically, put all the options into a hat and drawn some of them.
Systematic: Every kth element is taken. For example, you want to survey something on the street, you interview every 5th person, for example.
Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
Stratified: Also divides the population into groups. However, then only some elements of the group are surveyed.
In this question:
People divided into groups, by households.
Each member of the households(group) is surveyed, so cluster sampling.
Answer:
Multiply 9 by 6
Step-by-step explanation:
7:9 is the ratio
We multiply the first term by 6.
What we do to one side, we do to the other
7*6=42
9*6 = 54
That way we keep the ratio in the same proportion
42:54
Answer:
√10
Step-by-step explanation:
Magnitude of a vector:
The magnitude of a vector v = <a,b> is given by:
v=<-1,3>
Then:
is the magnitude of the vector.
Answer:
3/4, 4/5, 2/3. 3/5, 2/3
Step-by-step explanation:
What is 4/8 + 1/4 simplified
4/8 + 1/4
4/8 + (1/4)*2/2 (find the common denominator in our case it is 8)
4/8 + 2/8
6/8
or, 3/4 (I simplified the fraction to lowest term)
what is 3/5 + 2/10 simplified
3/5 + 2/10
3/5 + 1/5
4/5
what is 1/3 + 3/9 simplified
1/3 + 3/9
1/3 + 1/3
2/3
what is 2/10 +2/5 simplified
2/10 + 2/5
1/5 + 2/5
3/5
what is 3/6 + 2/12 simplified
3/6 + 2/12
3/6 + 1/6
4/6
2/3
Answer:
I'm assuming you want me to do 18-23? Okay:
Step-by-step explanation:
<u>18) </u>8.6(10^−4)+6.7(10^−5)
=0.000927 --> 9.27 × 10^-4
<u>19)</u> 3.5(10^3)−9(10^1)
=3410 --> 3.41 × 10^3
<u>20)</u> 5.6(10^4)(4.5(10^6))
=252000000000 --> 2.52 × 10^11
<u>21)</u> 7.6(10^−7)(8.9(10^−2))
=0 --> 0
<u>22)</u> 3.9(10^−12)/4(10^4)
=0 --> 0
<u>23)</u> 1.75(10^5)/5(10^−3)
=35000000 --> 3.5 × 10^7
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<em>Please comment below if you would like me to solve #24 :)</em>
<em>The bolded numbers are the answer, the underlined numbers are to show the question number. Hope this helped !!</em>
