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11111nata11111 [884]
3 years ago
10

Probability please answer‍♀️ Helppp please

Mathematics
1 answer:
wlad13 [49]3 years ago
3 0

Step-by-step explanation:

Let X be a random variable with PDF given by

fX(x)={ cx2 |x|≤1 0 otherwise

Find the constant c.

Find EX and Var(X).

Find P(X≥

1

2

).

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Only answer #5 <br><br><br>Please help me and thx and if u can answer #6 too if u can
Marianna [84]

Answer:

5. D

6. C

Step-by-step explanation:

<u>Question 5</u>

Lets plug in values of x and y into each equation to see which one works for the entire data set...

y=2x-4

1) Plug in -7 as x and -18 as y:

-18=2(-7)-4

2) Multiply:

-18=-14-4

3) Subtract:

-18=-18

The answers are the same, therefore the correct answer to question 5 is equation D. Keep in mind, you want to check ever single pair of points to make sure it works for all of them, I'm just not going to list that as it would make this answer a lot longer for no reason.

<u>Question 6:</u>

We know that the cost for the boat is $25 as a base price, and also costs an additional $1.30 per day for fuel.

The correct equation is C=25+1.30d, because we are adding 1.3 every single day.

4 0
3 years ago
Take the digits 4,5,6,7,8and9.make any three numbers each with 8digits
Anna [14]
So we can use the following digits: 4,5,6,7,8,9

and we need three numbers with 8 digits each. Here are some examples:
1)
45 678 999 (you can also write 45,678,999 for easier reading)

2) 44 456 789 (you can also write 44,456,789 for easier reading)

3)45 678 456 (or 45,678,456)

3 0
3 years ago
Help me the questions and answer choices are in the picture
Anika [276]
<span>Using the Triangle Inequality Theorem

</span><span>The sum of two side lengths of a triangle is always greater than the third side
</span>
first one: 6, 22 , 10
6 + 22   > 10 :  yes
22 + 10 > 6   :  yes
6 + 10 > 22   :  No because 16 < 22
These 3 lengths could NOT be lengths of sides of a triangle

second one: 8 , 15 , 22
8 + 15   > 22 :  yes
15 + 22 > 8   :  yes
8 + 22 > 15   :  yes
These 3 lengths could  be lengths of sides of a triangle

Answer:
Second option
8 cm, 15 cm, 22 cm
3 0
4 years ago
Lee el anexo , posteriormente Escribe 5 preguntas en su cuaderno referente al texto que leiste.
Fynjy0 [20]

Las cinco preguntas extraídas del anexo se encuentran a continuación:

  1. ¿Cuál es le nombre del virus que provoca la enfermedad llamada coronavirus?
  2. ¿Los síntomas de coronavirus son graves en todas las personas?
  3. ¿Cómo se propaga el coronavirus?
  4. ¿Cómo se puede contagiar del virus una persona?
  5. Para disminuir el riesgo de contagio, ¿es mejor permanecer en espacios cerrados o en espacios abiertos? ¿Por qué?

<em>Extracción</em><em> de </em><em>preguntas</em><em> a partir de un texto</em>.

Cuando se requiere elaborar preguntas, a partir de un texto predeterminado, es ideal que primero se lea el texto y se identifiquen todos los temas y subtemas que este contiene, así, con cada uno de estos, se podrán realizar preguntas, garantizando que la totalidad de la respuesta se encuentre dentro del texto, ya sea de forma explícita o implícita, este último caso cuando la persona debe inferir algunas especificaciones con la información brindada.

Si quieres aprender un poco más sobre el coronavirus, puedes visitar el siguiente enlace: brainly.com/question/22435929?referrer=searchResults

5 0
3 years ago
The Cubs have won
Naily [24]

First you need to figure out the games the Cubs lost. 11-7=4, so they lost 4 games.

Now you must plug in the ratio of games lost to games played. You know they lost 4 games and played 11, so the ratio would be 4:11.

I hope you find this helpful :)

4 0
3 years ago
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