Answer:
Step-by-step explanation:
Rational numbers;
Numbers which can be written in the form of or repeating decimal numbers are the rational numbers.
Examples : 1, 2,
Irrational numbers:
Numbers which can't be written in he form of a fraction or non repeating decimal numbers are the Irrational number.
Example:
From the given numbers,
Rational numbers: , 6.25, 0.01045,
, 0.424242....
Irrational numbers:
Answer:
And we can find this probability using the normal standard distribution table and we got:
And the percentage faster than 13.28 seconds would be 91.9%
Step-by-step explanation:
Let X the random variable that represent the runtimes of a population, and for this case we know the distribution for X is given by:
Where and
We want to find this probability:
And we can use the z score formula given by:
Using this formula we have:
And we can find this probability using the normal standard distribution table and we got:
And the percentage faster than 13.28 seconds would be 91.9%