Question

The survey was conducted to study the blood types of $150$ people as shown in the figure above.
If a person from this study is selected at random, what is the probability that this person has either Type A or Type AB blood?

• A. $\frac{62}{150}$
• B. $\frac{66}{150}$
• C. $\frac{68}{150}$
• D. $\frac{73}{150}$
• E. $\frac{84}{150}$

Answer 1

The correct option is D $\frac{73}{150}$

Total no of people $=150$

No. of person having blood group type A $=67$

No. of person having blood group type AB $=6$

Total no. of people having blood group type A or type AB $=$ $67+6=73$

$\therefore$ probability of the person has either Type A or AB blood $=$ $\frac{73}{150}$.