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3 years ago

7

Which pair are equal trig values?

1 answer:

Valentin [98]3 years ago

3 0

Answer:

The values of the simplified or solved trigonometric functions that are equal are sin and cos, given that the angles are complementary. From the choices above, the answer would be letter C. sin 36° = 0.5877 cos 54° = 0.5877 It can also be observed that 36° and 54° will sum up to 90°.

Step-by-step explanation:

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a) A response of 8.9 represents the 92nd percentile.

b) A response of 6.6 represents the 62nd percentile.

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Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 5.9

Standard Deviation, σ = 2.2

We assume that the distribution of response is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

a) We have to find the value of x such that the probability is 0.92

P(X < x)

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Calculation the value from standard normal z table, we have,

$P(z$

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P(X < x)

$P( X < x) = P( z < \displaystyle\frac{x - 5.9}{2.2})=0.62$

Calculation the value from standard normal z table, we have,

$P(z$

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P(X < x)

$P( X < x) = P( z < \displaystyle\frac{x - 5.9}{2.2})=0.25$

Calculation the value from standard normal z table, we have,

$P(z$

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