The marks scored out of 1000 by some students in an examination are given below in the form of a frequency distribution table.(3) point is Marks 75% or more but less than 95%.
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let the probability of getting marks 75% or more but less than 95% be E1
Favourable outcomes to E1 are 440
Total number of outcomes to E1 are 660
favourable outcomes P(E1)=________________
Total number of outcomes
440
= _____
660
22
= __
33
Favourable outcomes to E1 are 440
Total number of outcomes to E1 are 660
favourable outcomes P(E1)=________________
Total number of outcomes
440
= _____
660
22
= __
33
mohammadfaheem:
hope i helped you my dear frnd naira1
yes
which class are you studying
10th
i too
kk
you can also write this 22/33 = 2/3
Answered by
4
Total number of students = 660.
1) we have not the information on number of students getting less than 50% marks. Assuming that no one got below 500 marks,
Ans: prob (marks < 750)
= (25+30+150)/660 = 41/132
2) prob(marks < 50%) = 0
3) prob( 750 <= marks < 950) = (240+ 150 + 50) / 660
= 440/660 = 2/3
1) we have not the information on number of students getting less than 50% marks. Assuming that no one got below 500 marks,
Ans: prob (marks < 750)
= (25+30+150)/660 = 41/132
2) prob(marks < 50%) = 0
3) prob( 750 <= marks < 950) = (240+ 150 + 50) / 660
= 440/660 = 2/3
Click on the red heart thanks above please
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