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posledela
2 years ago
12

Find the median of the set of data 8.4, 4.9, 1.9, 1.3, 8.7, 9.4, 4.9, 5.5

Mathematics
2 answers:
Andrews [41]2 years ago
8 0

Answer:

Median is 5.2

Step-by-step explanation:

Median is the middle number when everything is in order

8.4, 4.9, 1.9, 1.3, 8.7, 9.4, 4.9, 5.5

--->

1.3, 1.9, 4.9, 4.9, 5.5, 8.4, 8.7, 9.4

Since there are two middle numbers we need the middle of those two

(4.9 + 5.5) / 2 = 5.2

sergejj [24]2 years ago
7 0

Answer:

5.2

Step-by-step explanation:

1.3, 1.9, 4.9, 4.9, 5.5, 8.4, 8.7, 9.4

the median is the middle number, so it would be in between 4.9 and 5.5

the answer is 5.2

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35

Step-by-step explanation:

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2 years ago
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Step-by-step explanation:

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3 years ago
isac walks 6/10 of a mile in 1/5 of an hour if his rate remains constant what is isac walking rate in miles per hour
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2 years ago
Find the line y=a+bx which best approximates the data points
Vika [28.1K]

Answer:

y = 11.84x - 32.71

Step-by-step explanation:

Here, the given data points,

(−3,−70),(−1,−42),(1,−21),(2,−9),(4,14),

Let x represents the input value and y represents the output value,

So, the table that represents the given situation is,

x         -3            -1             1             2             4

y       -70          -42         -21         -9             14

By the above table,

\sum x=3

\sum y=-128

\sum xy = 269

\sum x^2=31

\sum y^2 = 7382

Let the equation of the line is,

y = bx + a

Where,

a=\frac{\sum y \sum x^2 - \sum x\sum xy}{n(\sum x^2)-(sum x)^2}

b=\frac{n\sum xy - \sum x \sumy}{n(\sum x^2)-(\sum x)^2}

n = number of data points = 5,

By substituting the values we get,

a = - 32.70547945 ≈ - 32.71,

b = 11.84246575 ≈ 11.84,

Hence, the equation of line would be,

y = 11.84x - 32.71

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2 years ago
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