Jamita Shumen/15/18 342 AM TA 2023 Statistics lomework: HW_Probability 4 Sav 14

Question

Jamita Shumen/15/18 342 AM TA 2023 Statistics lomework: HW_Probability 4 Sav 14 of 15 (5 complete) Hw 5 of 15 p core: 0 of 1 pt 5.25 Identical twins come from a single egg that split into two embryos, and fratemal twins are from separate fertilized eggs. Also, idectical and the sexes are equally skely, and sexes of fratemal twins are equaly likely. Use the data table to parts (aland (by below Sexes of Twins boygin boylboy girlboy Identical Twins Fraternal Twins 2 a. Aher having a sonogram, a pregnant woman learms that she will have twins. What is the probatbility Phat she will haive idenscal t The probability is (Type an integer or a simplfied fraction ) b. Ather studying the sonogram more closely. the physician tels the pregnant woman that she ill give birth to twin boys. What is the probablity dentical twins? That is find the probability of identical twins given that the twins consist of two boys The probablity is Type an integer or a simpified and then cick Check Answer Enter your answer All parts showing

Explanation / Answer

Let A - identical twins

B- 2 boys

P (A/B) = P( A and B)/P(B)

= (7/22)/(9/22)

=7/9

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