Write the number 0.5 in the form a/b using integers to show it is a rational number a.5/11 b.5/10 c.5/100 d.2/1

The correct option is B.

Step-by-step explanation:

The given number is 0.5.

If a number can be defined as a/b where b≠0, then it is called a rational number.

We need to rewrite the given number in the form of a/b using integers.

Multiply and divide the given number by 10 to remove the decimal from the given number.

On simplification we get

Here a=5 and b=10 both are integers.

The given number 0.5 is a ration number because it can be written as 5/10.

Therefore the correct option is B.

4% of the tested population scored higher than Randy on the test

Step-by-step explanation:

P(X>105) = normalcdf(105,1e99,94,6.2) = 0.0380155219 ≈ 0.038 ≈ 3.8% ≈ 4%

Therefore, about 4% of the tested population scored higher than Randy on the test.