Question

Help me if you know the correct answer

Answer 1

Part D:

For 1490 people it is 745 people with percentage of 50%

Therefore for 320 million it is 50% therefore 160 million are predicted to wear.

Part E:

For 1490 people 618 people wore glasses with a percentage of 41.47%

Therefore for 320 million it is 41.47% therefore 132704000 people are predicted to wear.

Part F:

For 1490 people 127 people wear with a percentage of 8.52%

Therefore for 320 million it is 8.52% therefore 27264000 people are predicted to wear.

Hope it helps!!
Cheers!!