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CBSE Class 9 Answered

Twenty four people had a blood test and the results are shown below. A, B, B, AB, AB, B, O, O, AB, O, B, A AB, A, O, O, AB, B, O, A, AB, O, B, A (a) Construct a frequency distribution for the data. (b) If a person is selected randomly from the group of twenty four people, what is the probability that his/her blood type is not O? (c) What value do you draw from this activity?
Asked by Topperlearning User | 12 Dec, 2013, 09:35: AM
answered-by-expert Expert Answer

(a)

(b) Number of people whose blood group is not O = 5 + 6 + 6 = 17

Thus, probability that the selected person's blood group is not O = = 0.71 (approx.)

(c) Habit of donation and Social work.

Answered by | 12 Dec, 2013, 11:35: AM

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