A drawer is filled with 2 black shirts, 7 white shirts, and 11 gray shirts, One shirt is chosen at random from the drawer. Find the probability that it is not a black Write your answer as a fraction in simplest form.

A single die is rolled twice. Find the probability of rolling a 3 the first time and a 2 the second time. Find the probability of rolling a 3 the first time and a 2 the second time.

You are dealt one card from a standard 52-card deck. Find the probability of being dealt a club.

19. A student at a certain college has \( 60 \% \) chance of passing an examination at the first attempt. Each time a student fails and repeats the examination; his chances of passing are increased by \( 15 \% \). Calculate the probability that a student in the college passes an examination at the second or at the third attempt. [3008 marks)

18. Two bags A and B contain identical balls except for the colours. Bag A contains 4 red balls and 2 yellow balls. Bag B contains 2 red balls and 3 yellow balls. (a) If a ball is drawn at random from each bag, find the probability that both balls are of the same colour. (b) If two balls are drawn at random from each bag, one ball at a time without replacement, find the probability that (i) the two balls drawn from bag A or bag B are red, (iii) all the four balls drawn are red

The reading speed of second grade students in a large city is approximately normal, with a mean of 88 words per minute (wpm) and a standard deviation of 10 wpm. Cor (a) What is the probability a randomly selected student in the city will read more than 94 words per minute? The probability is (Round to four decimal places as needed.)