In a math class there are 28 students. Each student has a 90% chance of attending any given class and students act independently. What is the probability that tomorrow's class has perfect attendance?

Looks like .9^28 to me.

.9^28 = .0523

To find the probability of perfect attendance in tomorrow's class, we need to calculate the probability that each individual student attends the class and multiply those probabilities together.

Given that each student has a 90% chance of attending, the probability of a student attending is 0.9 and the probability of a student not attending is 0.1.

Since there are 28 students in the class, we can calculate the probability of perfect attendance by multiplying the individual probabilities together for all 28 students.

P(perfect attendance) = P(student1 attends) * P(student2 attends) * ... * P(student28 attends)

P(perfect attendance) = 0.9 * 0.9 * 0.9 * ... (28 times)

To calculate this, we can raise 0.9 to the power of 28:

P(perfect attendance) = 0.9^28

Calculating this probability will give us the final answer.