In Figure 4, ΔABC and ΔXYZ are shown. If AB = 3.8 cm, AC = 3√3 cm, BC = 6 cm, XY = 6√3 cm, XZ = 7.6 cm, YZ = 12 cm and ∠A = 45°, ∠B = 70°, then find the value of ∠Y.

CBSE Board question,2020( set 2)

Suppose medical records indicate that the length of newborn babies (in inches) is normally distributed with a mean of 20 and a standard deviation of 2.6. find the probability that a given infant is between 14.8 and 25.2 inches long.