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snow_tiger [21]
3 years ago
12

5. Let us apply the formula to some numbers. The following are the durations in minutes of a series of telephone calls. You want

to know the mean duration of the calls.
µ ═ ∑ X
n

Duration of calls: 12.3, 18.2, 33.1, 9.1, 7.3, 10.4, 11.5, 4.5, 8.9, 3.3
Mathematics
1 answer:
UkoKoshka [18]3 years ago
4 0

Answer: The mean is 11.86

Step-by-step explanation:

Add all the numbers and divide by however many numbers there are. In this case there are 10 numbers

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Evgesh-ka [11]

Answer:

-2 y

Step-by-step explanation:

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Last question and i can go!!! this is due today and im giving breainlies t !
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What is the slope of this graph? −14 4 14 −4 Number graph ranging from negative 10 to 10 on both the x and y axis. A line passes
spin [16.1K]

The slope of this graph is - 4

Step-by-step explanation:

The slope of a line is m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}} , where

  • (x_{1},y_{1}) and (x_{2},y_{2}) are two points on the line
  • The slope of a horizontal line is zero
  • The slope of a vertical line is undefined

∵ The graph is a line

∵ The line passes through points (1 , -2) and (0 , 2)

∴ x_{1} = 1 and x_{2} = 0

∴ y_{1} = -2 and y_{2} = 2

- Substitute these values in the rule below

∵ m=\frac{y_{2}-y_{1}}{x_{2}-x_{2}}

∴ m=\frac{2--2}{0-1}=\frac{4}{-1}

∴ m = - 4

The slope of this graph is - 4

Learn more:

You can learn more about the slope of a line in brainly.com/question/4152194

#LearnwithBrainly

7 0
3 years ago
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15 x sin(30)=?/15 x 15
Delicious77 [7]

Answer:

The exact value of

sin

(

30

)

sin(30) is

1

2

12.

15

⋅

1

2

15⋅12

Combine

15

15 and

1

2

12.

15

2

152

The result can be shown in multiple forms.

Exact Form:

15

2

152

Decimal Form:

7.5

7.5

Mixed Number Form:

7

1

2

712

Step-by-step explanation:

8 0
2 years ago
What does the called 0.22
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Its a decimal...........
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3 years ago
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