PLEASE HELP: Find the measure of the angle indicated. Arc BC is 80 degrees. 20
40
60
80

18 16 11 45 33 11 33 14 18 11 what is the mode for this data set

Which diagram shows lines that must be parallel lines cut by transversal?

Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.