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Katena32 [7]
2 years ago
9

Because sample means were being tested, the ___ is used to calculate the z-score

Mathematics
2 answers:
sergeinik [125]2 years ago
7 0

Formula to calculate Z score

   Z_{score}=\frac{a-b}{c}

Where,   a=Population mean

b=Sample Mean

c=Standard Deviation of the sample

Because sample means were being tested, "The Sample Standard Deviation and Population Mean" is used to calculate the z-score

Vinvika [58]2 years ago
6 0
<span>Because sample means were being tested, the bell curve is used to calculate the z-score</span>
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Three different ways to put 6(3x + 8) + 32 + 12x
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Answer:

<em>Writing 6(3x + 8) + 32 + 12x in 3 different ways:</em>

  • w₁ = 18x + 48 + 32 + 12x      

∵ 6(3x + 8) = 18x +48 as distribute law suggests that  a(b + c) = ab + ac

  • w₂ = 18x + 80 + 12x              ∵ 48 + 32 = 80
  • w₂ = 30x + 80                        ∵ 18x + 12x = 30x

Step-by-step explanation:

As the expression is 6(3x + 8) + 32 + 12x, and we have to write it in three different ways. Using the properties of operations we can write it in three different ways,

Let way one be denoted as w₁

Let way two be denoted as w₂

Let way three be denoted as w₃

So, lets write 6(3x + 8) + 32 + 12x in 3 different ways:

  • w₁ = 18x + 48 + 32 + 12x      

∵ 6(3x + 8) = 18x +48 as distribute law suggests that  a(b + c) = ab + ac

  • w₂ = 18x + 80 + 12x              ∵ 48 + 32 = 80
  • w₂ = 30x + 80                        ∵ 18x + 12x = 30x

<em>Keywords: operation properties, distributive law</em>

<em>Learn more about operation properties from brainly.com/question/13754344</em>

<em>#learnwithBrainly</em>

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