Question

suppose the probability that a randomly selected person is left-handed is 0.10. in a class of 250 students just how many left-handed seats should we have to be 95% sure that no left-handed person goes without a seat?

Answer 1

To be 95% sure that no left-handed person goes without a seat in a class of 250 students, we should have at least 25 left-handed seats.

Step-by-step explanation:

To be 95% sure that no left-handed person goes without a seat in a class of 250 students, we need to calculate the minimum number of left-handed seats required.

The probability that a randomly selected person is left-handed is 0.10, so we can expect that approximately 10% of the class will be left-handed. To calculate the number of left-handed seats needed to accommodate this percentage, we multiply the probability by the total number of seats in the class:

Number of left-handed seats = 0.10 * 250 = 25 seats

Therefore, to be 95% sure that no left-handed person goes without a seat, we should have at least 25 left-handed seats in the class.