Mathematics: Mrs. r is pregnant and very worried that the child will have beta-thalassemia. what is the probability that the child will have beta-thalassemia major? what is the probability that the child will have no trace of the disease?

Mrs. r is pregnant and very worried that the child

MissSusan2253

12.03.2022

There are three kind of beta-thalassemia.

Total possible outcome= 3 types of beta- thalassemia + 1 [child will have no trace of disease] = 4

As we know Probability(outcome) = $\frac{\text{ Total favorable outcome}}\text{Total possible outcome}$

Probability that the child will have beta-thalassemia major =\frac{_{1}^{3}\textrm{C}}{_{1}^{4}\textrm{C}}

= $\frac{3}{4}$

∴ favorable= $_{1}^{3}\textrm{C}$

And , Total = $_{1}^{4}\textrm{C}$

Probability that the child will have no trace of the disease= $\frac{1}{4}$

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