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marissa [1.9K]
2 years ago
11

What is the median of the data set represented by the dot plot?

Mathematics
2 answers:
sesenic [268]2 years ago
4 0

Answer:

  • Median is 14

Step-by-step explanation:

The median is the middle number (or average of middle two numbers if data set has even number of elements) of the data set.

According to the graph, the data set has 9 elements.

The 5th number in the set is the median, which is 14

12345 [234]2 years ago
4 0
<h3>Answer:</h3>

14

<h3>Step-by-step explanation:</h3>

Step-1: Prepare a table that represents the number of dots above a specific number:

\text{Dots above 10}: || \\ \text{Dots above 12}: | \\ \text{Dots above 13}: | \\ \text{Dots above 14}: | \\ \text{Dots above 15}: | \\ \text{Dots above 18}: | \\ \text{Dots above 19}: ||

Step-2: Put the values in ascending or descending upon your choice:

10, 10, 12, 13, 14, 15, 18, 19, 19

Step-3: Determine wether the total number of digits in the data is even or odd. This will help us find the median.

\text{9 digits in total}\\\\\text{The number of digits is \underline{odd}}

Since the number of digits is odd, we will use the formula (a + 1)/2

(where a is the number of digits in the data)

Step-4: Substitute the number of digits in the formula.

⇒ (a + 1)/2th

⇒ (9 + 1)/2th

⇒ (10)/2th

⇒ 5th digit is median

Step-5: Look for the 5th digit in the data. That digit is your median.

10, 10, 12, 13, \underline{\underline{14}}, 15, 18, 19, 19

The median of the dot plot is 14.

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