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lisabon 2012 [21]
3 years ago
8

Barbara surveyed students in her school by looking at an alphabetic list of 600 students names dividing them into groups of 10 a

nd randomly choosing one from each group How many students did she survey?What type of sample is this?
Mathematics
2 answers:
AveGali [126]3 years ago
7 0
Well, we can break this down into a few steps. First off, if we split these 600 students up into groups of 10, we're doing 600/10 groups, or 60 groups total. Then, if we randomly pick one student from each group, in total, we're surveying 60 students.

This is also an example of "stratified sampling". But that part's more of just knowing the vocabulary for statistics. Hope this helps!
Setler [38]3 years ago
6 0
60 AND THIS IS A RANDOM SAMPLE
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Step-by-step explanation:

You need to know the formula for area of a trapezoid, which is

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3 years ago
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Ipatiy [6.2K]

Answer:

4

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3 years ago
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iris [78.8K]

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Reformatting the input :

Changes made to your input should not affect the solution:

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Step by step solution :

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Equation at the end of step 1 :

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Step 2 :

Equation at the end of step 2 :

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I think its like this ,Tho hope it helped




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3 years ago
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