At a pre-school 54% of children prefer the colour red over the colour green. From a sample of 80 children: a) Calculate the​ range, centred on the population​ percentage, in which there is a 60​% probability that the sample percentage will be in that range.

8. A basketball player has a free throw percentage of 80%. He was fouled while attempting a three-point shot and will be shooting 3 free throws. Make a probability distribution for the number of shots he makes. a. List all possible outcomes: b. List all events; in this case, what are the possible numbers of shots made? c. Find the probability of each event and display the probabilities in the table: Event Probability of Event Total

R. H. Bruskin Associates Market Research found that 40% of Americans do not think that having a college education is important to succeed in the business world. If a random sample of five Americans is selected, what is the probability that At most 3 people will agree with that statement. Select one: a. 1 O b. 0.913 c. 0.8 O d. 0.7

Suppose 12% of people prefer the look of LCD screens to MicroLED screens. If 2 people are randomly selected (assume independence), determine the probability that the first person or second person prefers LCD screens, i.e. find P(L1 or L2) A. 0.226 B. 0.088 C. 0.122 D. 0.156 E. 0.240