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Romashka-Z-Leto [24]
2 years ago
15

A surveryor wants to know how many shoppers at a mall like to read books. He surveys 100 people coming out of a bookstore at the

mall.
Is this sampling method biased?

A. Yes
B. No
Mathematics
2 answers:
padilas [110]2 years ago
8 0
A. Yes

This sampling method is biased because the survey only asks people that are coming out of a bookstore rather than people all over the mall.
bonufazy [111]2 years ago
3 0
Yes it is biased aaaaaaaaaaaaaaaaaaaaaaaaaa
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I'm guessing on the make up of the matrices.
First off let's look at [C][F].
[C]=
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Example: First element is product of first row and first column.

.
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Now that we have [C][F], we can subtract it from [B], element by element,


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If this is not how the matrices look,please re-state the problem and be more specific about the make up of the matrices (rows x columns).
Here's an example.
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3 years ago
How tall would the tree be?
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Step-by-step explanation

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What is the equation of a circle with a center (-2, 3) and a radius r = 5?
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