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anzhelika [568]
3 years ago
12

the class average on a math test was 84.5 and the standard deviation was 4.4. Find the z-score for a test score of 94

Mathematics
1 answer:
Nuetrik [128]3 years ago
8 0
The z-score will be given by:
z=(x-μ)/σ
given that:
x=94
μ=mean=84.5
σ=standard deviation=4.4
thus
z=(94-84.5)/4.4
z=2.1591
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4 years ago
6) A sample of water is being cooled according to the formula is given by
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Answer:

Relevant domain: [0 40]

Relevant range: [0 80]

Step-by-step explanation:

We have the following function:

C(t) = 80 - 2t

In which C(t) is the water temperature.

t is the time.

The colling period ends when the water freezes (0°).

So it freezes after t minutes, and t is found when C(t) = 0. So

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t = \frac{80}{2}

t = 40

Relevant domain:

Input value of the function, which is in minutes. So between 0(initial) and 40(when the water freezes).

Relevant range:

Initial temperature, which is C(0) = 80, until it freezes, 0. So from 0 to 80.

5 0
3 years ago
ANSWER ASAP! ALL SCAM LINKS WILL BE REPORTED.
Igoryamba

Answer:

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Step-by-step explanation:

8 0
3 years ago
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MA_775_DIABLO [31]

Answer:

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Answer:

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Step-by-step explanation:

According to the question, the data mentioned is as follows

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The third and fourth option is correct

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3 years ago
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