Historical records reveal that 30% of all the high school graduates in a densely populated, urban, school district attend a four-year college. using a random sample of 20 graduates, what is the probability that exactly 8 will attend a four-year college?

Based on what i know about mean, this doesn't add up.

Which statement is true 1.the pythagorean theorem can be used to find the missing side of any triangle 2.the pythagorean theorem can be used to find the missing side of any polygon 3. the pythagorean theorem can be used to find the missing side of any right triangle 4.the pythagorean theorem can be used to find the missing side of any isosceles triangle

Ernest is purchasing a $175,000 home with a 30-year mortgage. he will make a $15,000 down payment. use the table below to find his monthly pmi payment.