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Aneli [31]
3 years ago
7

A county manager used a representative sample of two populations in the county to determine the number of pounds of trash thrown

away per person per week. The results are shown in the dot plots below. Sample 1: A dot plot titled Sample 1. A number line going from 0.5 to 2.5 in increments of 0.5 is labeled Pounds of Trash. There is 1 dot above 0.5, 3 above 1, 4 above 1.5, 2 above 2, and 2 above 2.5. Sample 2: A dot plot titled Sample 2. A number line going from 0.5 to 2.5 in increments of 0.5 is labeled Pounds of Trash. There are 2 dots above 0.5, 3 above 1, 4 above 1.5, 2 above 2, and 1 above 2.5. The town manager uses the median to show that the average amount of trash thrown away per person per week in each sample is the same. What is the town manager’s error? The medians of the data sets are not the same. He should have used the mean to determine the average because the data sets are approximately symmetric. He should have used the IQR of the data sets to determine the average because the first data set has more large numbers than the second data set. He should have used the MAD to determine the average because the data sets do not contain outliers.
Mathematics
2 answers:
REY [17]3 years ago
4 0

Answer: He should have used the mean to determine the average because the data sets are approximately symmetric.

Step-by-step explanation

umka2103 [35]3 years ago
4 0

Answer:

B

Step-by-step explanation:

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If lmn~ xyz which congruentes are true by CPCTC?
zhannawk [14.2K]

Answer:

<h2>B. LN ≅ XZ</h2><h2>C. ∠Y ≅ ∠M</h2><h2>E. MN ≅ YZ</h2>

Step-by-step explanation:

CPCTC: Corresponding Parts of Congruent Triangles are Congruent

If ΔLMN ≅ ΔXYZ, then:

B. LN ≅ XZ

C. ∠Y ≅ ∠M

E. MN ≅ YZ

<em>Corresponding sides:</em>

<em>LN → XZ</em>

<em>LM → XY</em>

<em>MN → YZ</em>

<em>Corresponding angles:</em>

<em>∠L → ∠X</em>

<em>∠N → ∠Z</em>

<em>∠M → ∠Y</em>

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A system of two linear equations is consistent and dependent. What is true about the graph of the equations?
steposvetlana [31]

Answer:

The best answer is " The lines are the same " ⇒ A

Step-by-step explanation:

A system of two linear equations can have:

  • One solution ⇒ 2 intersected lines at a point
  • An infinite number of solutions ⇒ same line
  • No solution ⇒ 2 parallel lines

If a system has at least one solution, it is called consistent

  • If a consistent system has exactly one solution, then it is called independent. they are represented by two intersected lines at a point
  • If a consistent system has an infinite number of solutions, then it is called dependent. They are represented by the same line

If a system has no solution, then it is called inconsistent. they represented by two parallel lines

Let us use these facts above to solve our question

∵ A system of two linear equations is consistent and dependent

∴ The system has an infinite number of solutions

∴ The system represented graphically by the same line

∴ The best answer is " The lines are the same "

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