Express y in terms of x in the equation =

Acoin is tossed 4 times which of the following represents the probability of the coin landing on heads all 4 times

Kari plans to sample 20 people of a population that contains 100 students. she wants to determine how many people wake up before 6 a. m. which sample is the most random?

The probability of drawing a heart from a standard deck of cards is .25. you record the card you draw and return the card before shuffling to ensure a binomial distribution. if you do this 20 times what is the probability that you will draw a heart 7 times? a. 0.888 b. 0.001 c. 0.112 d. 0.473