Acar insurance company suspects that the younger the driver is, the more reckless a driver he/she is. they take a survey and group their respondents based on age. of 217 respondents between the ages of 16-25 (group 1), 176 claimed to wear a seat belt at all times. of 398 respondents who were 26+ years old (group 2), 305 claimed to wear a seat belt at all times. find a 95% confidence interval for the difference in proportions. can it be concluded that there is a difference in the proportion of drivers who wear a seat belt at all times based on age group? enter the confidence interval - round to 3 decimal places

In a sample of 2023 u.s. adults, 373 said franklin roosevelt was the best president since world war ii. two u.s. adults are selected at random from the population of all u.s. adults without replacement. assuming the sample is representative of all u.s. adults, complete parts (a) through (d). (a) find the probability that both adults say franklin roosevelt was the best president since world war ii. the probability that both adults say franklin roosevelt was the best president since world war ii is (round to three decimal places as needed.) (b) find the probability that neither adult says franklin roosevelt was the best president since world war ii. the probability that neither adult says franklin roosevelt was the best president since world war ii is (round to three decimal places as needed.) (c) find the probability that at least one of the two adults says franklin roosevelt was the best president since world war ii. the probability that at least one of the two adults says franklin roosevelt was the best president since world war ii is (round to three decimal places as needed.) (d) which of the events can be considered unusual? explain. select all that apply. the event in part left parenthesis a right parenthesis is unusual because its probability is less than or equal to 0.05. the event in part (b) is unusual because its probability is less than or equal to 0.05. none of these events are unusual. the event in part (c) is unusual because its probability is less than or equal to 0.05.

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

Two numbers have a sum of -19. one number is x. what expression represents the other number?