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alexandr402 [8]
3 years ago
11

A bookstore wants to determine how many books the people in the surrounding neighborhood read per month on average. they survey

each customer who enters their store for one week. identify any bias in this method. if appropriate, suggest a method more likely to produce a random sample.
Mathematics
1 answer:
GREYUIT [131]3 years ago
4 0

Answer:

Step-by-step explanation:

poop

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Ulleksa [173]

Answer:

13+Z=-6

Step-by-step explanation:

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The mean score on a set of 17 test is 72. Suppose two more students take the test and score 68 and 63. What is the new mean?
Masja [62]

Answer:

New mean=71.32

Step-by-step explanation:

The expression for the total initial score is;

T=M×S

where;

T=total initial score

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replacing;

T=unknown

M=72

S=17

replacing;

T=72×17=1,224

The total initial score=1,224

Determine the total score by;

total score=total initial score+total final score

where;

total initial score=1,224

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replacing;

total score=1,224+131=1,355

Determine the new mean;

New mean=total score/new number

where;

total score=1,355

new number=(17+2)=19

replacing;

new mean=1,355/19=71.32

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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