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4 years ago

8

Cómo pueden ser las variables estadísticas?

1 answer:

VMariaS [17]4 years ago

6 0

Answer: Una variable es cualquier característica, número o cantidad que se puede medir o contar. Una variable también se puede llamar un elemento de datos. La edad, el sexo, los ingresos y gastos del negocio, el país de nacimiento, los gastos de capital, las calificaciones de clase, el color de los ojos y el tipo de vehículo son ejemplos de variables.

Step-by-step explanation:

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When will the cost of the protein bars and bands income be equal?

masya89 [10]

50 and 90 cause you can see it on the graph

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3 years ago

Write the following ratios in their simplest form 5/6 : 2/3

blagie [28]

It’s 2/3 I think I’m right

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3 years ago

Rewrite the expression without using a negative exponent 6m^-2

vekshin1

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3 years ago

Solve the equation<br> -2 + 2/3X = 10

Delicious77 [7]

Answer:

19.5

Step-by-step explanation:

add 2 to both sides...that makes 2/3X=12...then divide by 2/3 on both sides

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4 years ago

Lewis rolls a number cube and then chooses a card from a set of cards numbered 1 through 5. What is the probability that he will

IceJOKER [234]

Answer:

$\frac{1}{5}=0.2$

Step-by-step explanation:

The general formula for a probability is:

$P=\frac{FavorableEvent}{TotalEvents}$

The favorable events for the cube to fall in a even number are:

2, 4, and 6 ⇒ <u>3 favorable events</u>

and in the cube the total events are:

1, 2, 3, 4, 5, 6 ⇒ <u>6 total events</u>

So the probability of rolling an even number in the cube is:

$P=\frac{3}{6}\\\\\\ P=\frac{1}{2}$

Now we do something similar to find the probability to choose a card with an even number.

The favorable events for an even numbered card are:

2, 4 ⇒<u> 2 favorable events</u>

and the total number of events in the cards is:

1, 2, 3, 4, 5 ⇒ <u>5 total events</u>

Thus, the probability to choose an even numbered card (according to the probability formula) is:

$P=\frac{2}{5}$

And finally, since we want both things to happen we must multiply both obtained probabilities:

the probability that he will roll an even number and choose an even numbered card:

$P=\frac{1}{2}*\frac{2}{5} \\ \\P=\frac{2}{10} \\\\P=\frac{1}{5} =0.2$

The probability is 1/5 which is equal to 0.2 or 20%

3 0

3 years ago