A class has five students. What is the probability that exactly two of the students were born on a weekend?

This is binomial.

Here n = 5

p = 2/7

mean = np = 5*2/7 = 10/7 = 1.42857

standard deviation = sqrt(npq) = sqrt(5*2/7*5/7) = 1.01015

Step-by-step explanation:

Work Shown.

x=10

Step-by-step explanation:

This is because this parallelogram's sides are parallel to each other.

We can see that from the triangles sides inside the parallelogram.

This is why the opposite side is 10, then x=10.

Brainliest will help me! Hope this helps!