If there are 7,674,000,000 people in the world and 80,000 of them have a Reh, what is the probability at least one person has a Reh out of a random group of 3000 people?

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude

How can writing phrases as algebraic expressions you solve problems?

Olivia is using 160 quilt squares to make a red, yellow, and blue quilt if 25% of the quilt are red and 30% are yellow how many quilt squares are blue