61. The following table shows the blood group of 100 students:
Blood Group
A B 0 AB B+
Number of Students
23 35 20 10
12
62. One student is taken at random. What is the probability that his blood group is B+
(a) 0.12 (b) 0.35 (c) 0.20 (d) 0.10
ranveersingh66:
plz tell just option
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The probability that his blood group is B+ is (d) 0.10
Step-by-step explanation:
- Here, according to the given information, the total number of students is equal to 100. According to the table given here, the number of students with the blood group B+ is 10.
- Probability is the measure of the number of favorable outcomes to the total number of possible outcomes, that is,
Here, one student is taken at random from the number of students. Then the number of favorable outcomes will be 10 because that is the information known to us. Now, total number of possible outcomes is equal to 100 because there are 100 students in total.
Therefore, probability that his blood group is B+ = = =
Hence, the probability that his blood group is B+ is (d) 0.10
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