1-) Number of right answers 0 Number of students 53 120 109 63 35 1 2 3 4 1 5 A group of 380 students have a 4 questions test. Finding the right answer for each question is. The distribution of students with respect to the number of right answers is as follows. Test at the 0.05 level of significance whether the distribution is a random variable having binomial distribution.

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