2 years ago

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

1 answer:

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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2 years ago

What's the most effective method for controlling inventory ? a ) Electronically , by reviewing billing receipts b ) Electronical

mina [271]

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1 year ago

Angle m AOC=108° m AOB=3x+4° m BOC=8x-28°<br><br> Find m AOB

Alex787 [66]

Hello from MrBillDoesMath!

Answer:

Discussion:

A diagram is always appreciated!

Assuming that

mAOC = mAOB + mBOC =>

108 = (3x + 4) + (8x - 28) => combine common terms

108 = (3x + 8x) + (4 - 28 ) =>

108 = 11x - 24 => add 24 to both sides

132 = 11x =>

x = 132/11 = 12

So mAOB = 3x + 4 = 3(12) + 4 = 36 + 4 = 40

Thank you,

MrB

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2 years ago