GE 6.4.1: Adding and multiplying probabilities. Jump to level 1 A person draws a card from a hat. Each card is one color, with the following probabilities of being drawn: 1/10 for white, 1/25 for purple, 1/5 for yellow, and 1/15 for green. What is the probability of pulling a purple or white card, written as a reduced fraction? Ex: 1/5​

Which of the following represents the factorization of the trinomial below? x^2+7x-30

When you flip a biased coin the probability of getting a tail is 0.6. how many times would you expect to get tails if you flip the coin 320 times?

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.