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3 years ago

11

Discrete and continuous random variables

1 answer:

Iteru [2.4K]3 years ago

8 0

A continuous variable<span> is a </span>variable<span> whose value is obtained by measuring. A </span>random variable<span> is a</span>variable<span> whose value is a numerical outcome of a</span>random<span> phenomenon. A </span>discrete random variable<span> X has a countable number of possible values. Example: Let X represent the sum of two dice</span>

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How many different ways can 25 students line up for lunch?

zheka24 [161]

$25!=15,511,210,043,330,985,984,000,000$

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3 years ago

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In a class of 40 students, 5 like neither Nokia nor

Vikki [24]

Answer:

No student liked only Nokia

Step-by-step explanation:

The information can be illustrated as shown on the Venn diagram.

The number of students who liked only Nokia is x.

The sum of all regions in the Venn diagram should be 40.

We add all to get:

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$x = 40 - 40$

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3 years ago

A pizza restaurant gave a 20% discount on the supreme pizza which cost $16. what was the sale price?

Inga [223]

Answer:

you saved $3.20

Step-by-step explanation:

16 x 20/100

16 x 0.2

= 3.20

so 16-3.20= 12.80

final price is 12.80

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2 years ago

If r+s/r =3 and t+r/t =5, what is the value of s/t ? (A) 12 (B) 35 (C) 4 (D) 8 (E) 16

Leno4ka [110]

Answer:

The answer of this question is (D) 8

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3 years ago