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3 years ago

Below are 36 sorted ages of an acting award winner. Find P80.

Mathematics

2 answers:

Serggg [28]3 years ago

8 0

The correct answer is:

1/36.

Explanation:

To find the experimental probability of an event, you use the following ratio:

(# of ways the event can occur)/(total number of events).

In this list, there is only one value that is 80. This means the value 80 can occur only one way.

There are 36 numbers in this list. This means that the total number of events is 36.

This gives us the probability P(80) = 1/36.

blsea [12.9K]3 years ago

3 0

P80 = 36 * 0.80 = 28.8

The above equation shows that the 80th percentile will have 28.8 values below it. So obtaining the 29th value will be the 80th percentile.

Looking at the given values, P80 = 67.

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A binomial experiment consists of 14 trials. The probability of success on trial 7 is 0.84. What is the probability of failure o

r-ruslan [8.4K]

Answer:

The probability of failure of trial 11 is $q = 0.16$

Step-by-step explanation:

Generally one the attributes of a binomial experiment is that the probability of success and failure is constant every trial so given from the question that the probability of success is 0.84 for trial 7 , then the probability of failure of trial 7 will be evaluated as

$q = 1 - 0.84$

=> $q = 0.16$

And from the attribute stated above the probability of failure of trial 11 is $q = 0.16$

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3 years ago

Charlotte have 36 apple,Dylan have 1 apple and Kevin have 56 apple how many apples are left?

IRISSAK [1]

Answer:

93 apples?

Step-by-step explanation:

36 + 1 + 56 = 93 apples?

5 0

3 years ago

If x = a cosθ and y = b sinθ , find second derivative

Olin [163]

I'm guessing the second derivative is for y with respect to x, i.e.

$\dfrac{\mathrm d^2y}{\mathrm dx^2}$

Compute the first derivative. By the chain rule,

$\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{\mathrm dy}{\mathrm d\theta}\dfrac{\mathrm d\theta}{\mathrm dx}=\dfrac{\frac{\mathrm dy}{\mathrm d\theta}}{\frac{\mathrm dx}{\mathrm d\theta}}$

We have

$y=b\sin\theta\implies\dfrac{\mathrm dy}{\mathrm d\theta}=b\cos\theta$

$x=a\cos\theta\implies\dfrac{\mathrm dx}{\mathrm d\theta}=-a\sin\theta$

and so

$\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{b\cos\theta}{-a\sin\theta}=-\dfrac ba\cot\theta$

Now compute the second derivative. Notice that $\frac{\mathrm dy}{\mathrm dx}$ is a function of $\theta$ ; so denote it by $f(\theta)$ . Then

$\dfrac{\mathrm d^2y}{\mathrm dx^2}=\dfrac{\mathrm df}{\mathrm dx}$

By the chain rule,

$\dfrac{\mathrm d^2y}{\mathrm dx^2}=\dfrac{\mathrm df}{\mathrm d\theta}\dfrac{\mathrm d\theta}{\mathrm dx}=\dfrac{\frac{\mathrm df}{\mathrm d\theta}}{\frac{\mathrm dx}{\mathrm d\theta}}$

We have

$f=-\dfrac ba\cot\theta\implies\dfrac{\mathrm df}{\mathrm d\theta}=\dfrac ba\csc^2\theta$

and so the second derivative is

$\dfrac{\mathrm d^2y}{\mathrm dx^2}=\dfrac{\frac ba\csc^2\theta}{-a\sin\theta}=-\dfrac b{a^2}\csc^3\theta$

4 0

3 years ago

Who founded the most successful mission in texas? PLEASE BE FAST

dolphi86 [110]

Answer:

San Antonio de Valero Mission.

Step-by-step explanation:

San Antonio de Valero, one of five Spanish missions established by Franciscans in what is now San Antonio, is most commonly known as the site of the battle of the Alamo (1836).

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LenaWriter [7]

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