Here's link to the answer:
bit.ly/3a8Nt8n
Answer:
Mary should answer that more than half of the boxes not be rejected.
Explanation:
Probability:
Box has one defective screen = 0.6
Box has three defective screen = 0.4
no. of screens in a box = 8
The box is rejected if both of the inspected screens are defective.
Probability of rejecting a box:
= 0.04286
Only 4.286% of the boxes will be rejected.
Therefore, Mary should answer that more than half of the boxes not be rejected.
He needs to add %4 more apple juice because %12 - %8 = %4
Answer:
D) 100 billion
Explanation:
This method is used by astronomers all over the world because it is impossible to count all the stars. Even in parts of the sky that seem to be totally dark, there are dozens of galaxies, each with millions of stars.
Our universe is so incredibly huge that even a number as big as 100 billion stars seems to be small. But using that technique, astronomers have calculated that there are 100 billion stars in the universe. I believe that number will change in the future as soon as we are able to build better telescopes, and astronomers will be capable of counting more stars in each patch.