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In a survey of 3 of 4 students said the courts show too much concern for criminals.  Find the probability that at most 3 out of 7 randomly selected students will agree with this statement.

Need help with (d) part. Thank you. 
 
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Age
18-23
24-29
30-35
36-41
42-47
48-53
 


Male
2
2
3
1
2
1
11


Female
5
3
4
3
1
3
19


 
7
5
7
4
...

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According to the given question, in a survey of 3 of 4 students said the courts show too much concern for criminals.&nbsp;Therefore the probability of success is defined as:&nbsp;

Let us X be the random variable shows that the number of students will agree with this statement.Therefore X follows binomial distribution with n=7 and p=0.75 or,

Therefore the probability that at most 3 out of 7 randomly sele...

Statistics

Math

In a survey of 3 of 4 students said the courts show too much concern for criminals.  Find the probability that at most 3 out of 7 randomly selected students will agree with this statement.

In a survey of 3 of 4 students said the courts show too much concern for criminals. Find the probability that at most 3 out of 7 randomly selected students will agree with this statement.

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