Respuesta :
like t.v. dont like t.v total
like reading 70 10 80
dont like reading 20 30 50
total 90 40 130
percentage of students like t,v and reading : 70/130 = 0.538 = 53.8%
probability of a student who does not like watching t.v. also does not like reading. : 30/40 which reduces to 3/4
like reading 70 10 80
dont like reading 20 30 50
total 90 40 130
percentage of students like t,v and reading : 70/130 = 0.538 = 53.8%
probability of a student who does not like watching t.v. also does not like reading. : 30/40 which reduces to 3/4
A. The percentage of the total students surveyed like both watching television and reading is 53.8%.
B. the probability that a student who does not like watching television also does not like reading is 3 by 4.
- The calculation is as follows:
like reading 70 10 80
dont like reading 20 30 50
total 90 40 130
Now
percentage of students like t,v and reading is
[tex]= 70\div 130 [/tex]
= 0.538
= 53.8%
And,
probability of a student who does not like watching t.v. also does not like reading. is
[tex]= 30\div 40 \\\\ = 3\div 4 [/tex]
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