Weekly pocket expenses of 125 students of a school are given below: Weekly pocket 10-20 20-30 30-50 50-60 60-90 90-100 expenses in 3) No. of students 10 15 40 25 30 5 Find the probability that the expenditure of a student lies in the interval (i) 30-50 (ii) 10-20.
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Answer:
10 and 40 is correct answer bro
Answered by
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Answer:
i) 8/25 ii) 2/25
Step-by-step explanation:
i) Probability= No. of students lying in interval 30-50
Total no. of students
= 40/125 = 8/25 ( By converting in simplest form)
ii) Probability= No. of students lying in interval 10-20
Total no. of students
= 10/125 = 2/25 (By converting in simplest form)
Therefore i) 8/25 ii) 2/25
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