A fair die is rolled four times. What is the probability of obtaining at least three 2's? < P(at least three 2's) = (Round to three decimal places as needed.)

Assume that when adults with smartphones are randomly selected, 45% use them in meetings or classes. If 9 adult smartphone users are randomly selected, find the probability that at least 6 of them use their smartphones in meetings or classes. The probability is 0.9502. (Round to four decimal places as needed.) CHE

A fair die is rolled ten times. What is the probability of getting an even number 4 times out of 10? (3 d.p.)

A die is rolled 7 times. Find the probability of rolling no more than 4 ones.       The probability of rolling no more than 4 ones is nothing. ​(Type an integer or decimal rounded to four decimal places as needed. Round all intermediate values to four decimal places as​ needed.)

A group of people were asked if life exists elsewhere in the galaxy. 298 responded "Yes", and 359 responded "No". Find the probability that if a person is chosen at random, the person believes life exists elsewhere in the galaxy. Probability = 0.4534 x (Round to 4 decimal places)