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8_murik_8 [283]
3 years ago
12

HELP ME PLEASE ILL BRAINLIEST YOU IF YOU GET IT RIGHT

Mathematics
2 answers:
puteri [66]3 years ago
6 0
The correct answer is c
denis23 [38]3 years ago
5 0
The correct answer would be C
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The correct option is (b).

Step-by-step explanation:

If X \sim N (µ, σ²), then Z=\frac{X-\mu}{\sigma}, is a standard normal variate with mean, E (Z) = 0 and Var (Z) = 1. That is, Z \sim N (0, 1).

The distribution of these z-variate is known as the standard normal distribution.

The mean and standard deviation of the active minutes of students is:

<em>μ</em> = 60 minutes

<em>σ </em> = 12 minutes

Compute the <em>z</em>-score for the student being active 48 minutes as follows:

Z=\frac{X-\mu}{\sigma}=\frac{48-60}{12}=\frac{-12}{12}=-1.0

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The correct option is (b).

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2 years ago
7 d^2 +10 when d = 3
user100 [1]

Answer:

d = 3/7 = 0.429

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Step-by-step explanation:

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2 years ago
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Please answer all questions except D. It has already been answered. Will give brainliest, ty!
VashaNatasha [74]

Answer: c) 0.531441 = 0.53

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Step-by-step explanation: everyone will say that they will mark as brainliest but nobody does, you guys lie, but I still give the answers

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The first photo

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Its a i think

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