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4 years ago

For a continuous random variable x, the probability density function f(x) represents

Mathematics

1 answer:

jarptica [38.1K]4 years ago

7 0

Answer:

Option d.

Step-by-step explanation:

we know that

The graph of a continuous probability distribution is a curve. Probability is represented by area under the curve.

The curve is called the probability density function (abbreviated as pdf).

We use the symbol f(x) to represent the curve

therefore

The probability density function f(x) represents . the height of the function at x.

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Starting with 13 grams of starch, what percentage is left when 6 grams remain? Write your answer to two decimal points.

topjm [15]

Answer:

46.15%

Step-by-step explanation:

(6 ÷ 13) × 100 = 46.15384615

= 46.15%

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3 years ago

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Marina CMI [18]

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3 years ago

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3 years ago

Given that the quadratic equation 3x^2+bx-2 has x-intercept {-2, 4}. What is the "b" value.

Luba_88 [7]

The value of b is $b=3$

Explanation:

The given quadratic equation is $y=3x^{2} +bx-2$

And has x - intercept $(-2,4)$

To determine the value of b, let us substitute the coordinates $(-2,4)$ in the given quadratic equation $y=3x^{2} +bx-2$

Substituting the x - intercept in the equation $y=3x^{2} +bx-2$ , we have,

$4=3(-2)^{2} +b(-2)-2$

Simplifying, we have,

$4=3(4)-2b-2$

$4=12-2b-2$

Adding the constant terms, we get,

$4=10-2b$

Subtracting both sides by 10, we have,

$-6=-2b$

Dividing both sides by -2, we get,

$b=3$

Hence, the value of b is $b=3$

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3 years ago

Identify equal rational numbers in this list: <br><br> (The fractions)

Pachacha [2.7K]

Answer:

All of them

Step-by-step explanation:

A rational number is any number that can be written as a fraction.

hope this helps :)

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3 years ago