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zvonat [6]
3 years ago
5

A school principal wants to know more about the number of students absent each day. He counts the number of students absent each

day for one week: {24, 18, 31,
Mathematics
1 answer:
True [87]3 years ago
6 0

Answer:

6.27

Step-by-step explanation:

We are to obtain the standard deviation of the given values :

{24, 18, 31,25, 34}

The standard deviation = √(Σ(x - mean)²/ n)

The mean = (ΣX) /n

Using calculator to save computation time :

The standard deviation, s = 6.27 (2 decimal places)

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3 years ago
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the smallest angle in a triangle is one-third of the largest angle. the third angle is 10degrees more than the smallest angle. f
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A: smallest 
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9) The base and the height of a rectangle are represented by the expressions below.
Nuetrik [128]
9 :


Given,
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Base = x + 4
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Therefore,


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10 :




Given,
First integer = x
Second integer = x + 2
Third Integer = x + 4




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= > ( x ) + ( x + 2 ) + ( x + 4 ) = 36

= > x + x + 2 + x + 4 = 36

= > 3x + 6 = 36

= > 3x = 30

= > ( 3x ) ÷ ( 3 ) = ( 30 ) ÷ ( 3 )

= > x = 10





\text{Hence,  }
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3 years ago
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