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Anna [14]
3 years ago
12

A good way to avoid bias when collecting samples is to ___.

Mathematics
1 answer:
Dafna1 [17]3 years ago
6 0

Probably the most effective method researchers use to prevent sampling bias is through simple random sampling where samples are selected strictly by chance.

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Use properties of addition and subtraction to evaluate the expression -24 -8 -26
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-58 is the answer of the problem
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HELP I NEED HELP ASAP
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B.

Step-by-step explanation:

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Anika [276]

Answer:

x=42

Step-by-step explanation:

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Find the LCM of 315,420,525 using prime factorisation method with slove it​
Vedmedyk [2.9K]

\boxed{\sf \:\begin{cases}\\\begin{gathered} {\underline{{ \sf {\blue{\Large\bf \underbrace{ {\rm {\purple{\begin{array}{r | l}\large\rm{\red{ 5}}&\underline{315,420,525}\\\large\rm{\red{ 3}}&  \underline{63,84,105}\\\large\rm{\red{3}}&\underline{21,28,35}\\\large\rm{\red{ 7}}&\underline{7,28,35}\\\large\rm{\red{2}}&\underline{1,4,5}\\\large\rm{\red{2}}&\underline{1,2,5}\\\large\rm{\red{5}}&\underline{1,1,5}\\&1,1,1\end{array}}}}} }}}}}\end{gathered}\\\end{cases}}

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<u>Hence, the LCM of 315 , 420 , 525 is 6300</u>

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108 months old.

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Year = 12 months

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9 years = 108 months.

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