Achromosome mutation believed to be linked with colorblindness is known to occur, on the average, once in every 10,000 births. if 20,000 babies are born this year in a certain city:
1. what is the probability that at least one will develop colorblindness?
2. what is the exact probability model that applies here?
3. approximate the probability that 2 or more babies will develop colorblindness, using the appropriate poisson model.

0.8647,0.5940

Step-by-step explanation:

Given that a chromosome mutation believed to be linked with colorblindness is known to occur, on the average, once in every 10,000 births.

Hence for a sample of 20000 babies we can take average as 2.

2) Since n is very large and p is small but np is finite Poisson model applies here.

1)  the probability that at least one will develop colorblindness

=

3)  the probability that 2 or more babies will develop colorblindness, using the appropriate Poisson model.

=

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.