the blood groups of 30 students of class ix are recorded as follows: a, b, o, o, ab, o, a, o, b, a, o, b, a, o, o, a, ab, o, a, a, o, o, ab, b, a, o, b, a, b, o a student is selected at random from the class from blood donation. find the probability that the blood groups of the student chosen is: (i) a (ii) b (iii) ab (iv) o
Answers
Total outcomes = 30
[Tex]Required \: probability = \frzc{Favorable\: Outcomes}{Total\: Outcomes}[/tex]
➡️Favorable Outcomes = 10
Total Outcomes = 30
[Tex]Required\: Probability = \frac{Favorable \:Outcome}{Total \:Outcome}[/tex]
>> 10 / 30
>>1 / 3
➡️Favorable outcomes = 6
Total Outcomes = 30
[Tex] Required \:Probability = \frac{Favorable\: Outcome}{Total \:Outcome}[/tex]
>> 6/30
>> 1 / 5
➡️Favorable Outcomes = 3
Total Outcomes = 30
[Tex] Required \:probability = \frac{favourable \:outcomes}{total \:outcomes}[/tex]
>> 3/ 30
>>1 / 10
➡️Favorable Outcomes = 12
Total Outcomes = 30
[Tex] Required\: probabilty =\frac {favourable\: outcomes}{total \:outcomes}[/tex]
>> 12/30
>> 6/15
@skb
Total outcomes = 30
➡️Favorable Outcomes = 10
Total Outcomes = 30
>> 10 / 30
>>1 / 3
➡️Favorable outcomes = 6
Total Outcomes = 30
>> 6/30
>> 1 / 5
➡️Favorable Outcomes = 3
Total Outcomes = 30
>> 3/ 30
>>1 / 10
➡️Favorable Outcomes = 12
Total Outcomes = 30
>> 12/30
>> 6/15
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