What type of number is 0.2782? whole number, integer, rational, irrational which ones would it be ?

The number belongs to:

                   Rational number.

Real number---

A real number is a number which is a value which is used to represent a distance on a real line.

It is divided into two categories--

1)

Rational Number--

A rational number is a number which is written in the form of p/q where p and q are integers and q is not equal to zero.

Also, the decimal representation of such a number is recurring or a terminating decimal.

2)

Irrational number--

A rational number is a number which could not be  written in the form of p/q where p and q are integers and q is not equal to zero.

Also, the decimal representation of such a number is non-terminating and non-recurring decimal.

We are given a number as:

                 0.2782

The decimal number is terminating decimal.

Hence, the number is a rational number.

( It is not a whole number because the whole number do not exist in decimal.

They are numbers such as: {0,1,2,3,}

and integers are the collection of positive and negative whole numbers)

a. 19,958,400

step-by-step explanation:

hope this

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0