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asambeis [7]
3 years ago
7

In order to avoid staying after work, a quality control analyst inspects the first 100 items produced that day. Which sampling m

ethod did she use?
Mathematics
1 answer:
Elanso [62]3 years ago
7 0
The sampling method used in the situation of the quality control analyst in his attempt to avoid staying after work would be a non-probability sampling method. He used a nonprobability sampling called convenience sampling wherein the person gets a sample for easy and convenient results.
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3 years ago
A photocopier increased the sides of a square in the ratio 4:5.
Svetach [21]

Answer:

The sides are increased by a percentage of 25%

Step-by-step explanation:

Let

x -----> the length side of the original square

y ----> the length side of the increased square

we have

\frac{x}{y} =\frac{4}{5}

y=\frac{5}{4}x

y=1.25x

the increase is calculated by subtracting x from y

so

y-x=1.25x-x=0.25x

Remember that

0.25=\frac{25}{100}=25\%

therefore

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3 years ago
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maks197457 [2]

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Kendra is considering two different long-distance phone plans. Phone plan A charges a $100 sign-up fee and 3 cents per minute. P
Gekata [30.6K]

Answer:

The number of minutes in a month must be equal to 50 minutes

Step-by-step explanation:

Let

x ---> the number of minutes

we have

<em>Cost Plan A</em>

3x+100

<em>Cost Plan B</em>

5x

we know that

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cost of plan A = cost of plan B

substitute

3x+100= 5x

solve for x

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therefore

The number of minutes in a month must be equal to 50 minutes

5 0
3 years ago
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