Brian and Jennifer are planning to get married at the end of the year. They read

Question

Brian and Jennifer are planning to get married at the end of the year. They read that certain diets are healthier for specific blood types and hope that they both have the same blood type Unfortunately, neither Brian nor Jennifer can remember their blood type Brian's blood type Jennifer's blood type 0.21 0.34_B 38AB 0.07 Suppose a recent study shows that 21% of adults have blood type A, 34% of adults have blood type B, 38% of adults have blood type AB, and 7% of adults have blood type O. The tree diagram shows the possible outcomes for Brian and Jennifer along with their associated probabilities 0.21 0.21 38AB 0.07 What is the probability that Brian and Jennifer share the same blood type? Give your answer as a decimal, precise to at least two decimal places. 0.21 0.38 AB 38AB 0.07 0.07 P(Brian and Jennifer have the same blood type)332 0.21 0.38AB 0.07

Explanation / Answer

P(brain and Jennifer has same blood type =P(both have A+both have B+both have AB+both have O)

=0.21*0.21+0.34*0.34+0.38*0.38+0.07*0.07=0.309

Related Questions

Navigate

• Browse (All)
• Browse B
• Subjects

---