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3 years ago

13

Can a rational number be a irrational number

1 answer:

jekas [21]3 years ago

4 0

Answer:

No. Rational numbers are different from irrational numbers. Rational numbers are numbers that can be written as a fraction. Rational numbers can be a terminating decimal (a number with digits that end/do not repeat) or a repeating decimal (a number with digits that repeat continuously in a pattern). On the other hand, an irrational number is a number that is continuous, and its digits are random.

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Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to fi

Keith_Richards [23]

Answer:

P(X = 12) = 0.0064.

Step-by-step explanation:

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

In this problem we have that:

$n = 30, p = 0.2$

We want P(X = 12). So

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 12) = C_{30,12}.(0.2)^{12}.(0.8)^{18} = 0.0064$

P(X = 12) = 0.0064.

6 0

3 years ago

Can pretty please help me with 2 math question its due today

Mashcka [7]

Answer:
(4x + 12 ) - ( -8 ) =
4x + 20
Explanation:
Just add them up and form a equation ( this is for the second one )

5 0

3 years ago

Read 2 more answers

X÷79 + 72 - 18 hellppppp

tino4ka555 [31]

Answer:

1/5688x-18

I am not sure about my answer because I think the question is missing some information but my answer is 1/5688x-18. Thanks!

7 0

3 years ago

Find the scale factor abc def

Vesna [10]

Answer:

The scale factor is 1.2.

Step-by-step explanation:

18/15 = 1.2

30/25 = 1.2

24/20 = 1.2

Hope that helps!

8 0

3 years ago

Please answer 6 and 7

nexus9112 [7]

Number 6 is 15 7 is 3

5 0

3 years ago