Question

A is true but R is false.​

Answer 1

Answer:

Due to the refraction of light, the water appears higher than its actual level when seen from above. ... The light entering from denser to lighter medium bends towards the normal and this causes the refraction of light and the object appears to be raised.

Answer 2

Explanation:

In a city 100 families with 2 children were selected randomly and the following data was collected

. No. of boys 3. 2. 1

families. 25. 55. 20

Find the probability of a family chosen at random having:

(a) one boy

(b) two boys

(c) three boys