Question

The probability you'll see a falling star in the sky over the course of one hour is 0.44. What's the probability you'll see one over half an hour?

Answer 1

Probability so see one falling star over half an hour is 0.25

Explanation:

An hour can be taken as two half hours so we can write the probability to see a falling star as

(1-P)*(1-P) = 1 - 0.44

( 1 - P )² = 0.56

1 - P =
`√(0.56)`

P = 1 -
`√(0.56)`

P = 0.25