A study shows that \(30 \%\) of the students from a town use their own transport to school.
If \(10\) students from the town are chosen at random, calculate the probability that exactly \(3\) of them use their own transport to school.
\(0.\,2668\)
\(0.\,3668\)
The probability of a student passing an Science test is \(0.55\).
There are \(70\) students in a survey.
Determine the standard deviation of the distribution.
\(3.\,1623\)
\(4.\,1623\)
The probability of buying a rotten durian is \(0.35\).
There are \(400\) durians in a basket.
\(10.\,5394\)
\(11.\,5394\)
The probability that an accident happens along a certain stretch of highway in a day is
\(0.65\).
What is the probability that an accident happens more than \(5\) times in a week?
\(0.\,4338\)
\(0.\,3338\)
\(90\%\) of the students in a certain school arrive early every day.
A group of \(n\) students are chosen at random, the probability that all are early is \(0.5213\).
Find the value of \(n\).
\(6\)
\(7\)
There is something wrong with this question.
