On a survey at a particular university, 50% of the students indicated that they have misplaced their Student Identification Card at least once in the past year. If 10 students are in a campus computer lab, what is the probability that 2 or 3 of them have misplaced their Student Identification Card in the past year? Round to four decimal places, if necessary.
A) 0.791
B) 0.1611
C) 0.1875
D) 0.1465

Question

Quizplus · Accepted Answer

The problem follows a binomial distribution with n = 10 trials and p = 0.5 probability of success. The probability of exactly 2 or 3 students misplacing their ID card is calculated using the binomial probability formula. The sum of these probabilities is approximately 0.1611.

On a Survey at a Particular University, 50% of the Students