Which of the following statements is false?
if a number is a natural number, then it is rational.
if a number is a whole number, then it is rational.
if a number is a fraction, then it is rational.
if a number is an integer, then it is irrational.

If a number is an integer, then it is irrational.

Step-by-step explanation:

We know that :-

The set of natural numbers is contained in the set of whole numbers .

The set of whole number is contained in the set of integers.

The set of integers is contained in the set of rationals.

The set of rationals is contained in the set of real numbers.

But the irrational numbers are all the real numbers which are not rational numbers.

Therefore, only fourth statement is false."If a number is an integer, then it is irrational."because all integers are contained in rationals but irrationals are all the real numbers which are not rational numbers.

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

copy and paste, put it in google

x -

median = 1.25

range = 12-14.5

interquartile = q12-q14.5

y -

median = 1

range = 15-17

interquartile = q15-q17