Explain how to use hashing to check whether all elements of a list are distinct. What is the time efficiency of this application

Given the resulting p-values, would you reject or fail to reject the null hypotheses (assuming a 0.05 significance level)? what does your decision mean in the context of this problem? would you proceed with changing the design of the arrow, or would you keep the original design?

Which two editions of windows 7 support 64 bit cpus? choose two out of professional, business, starter, or home premium.

Three out of five seniors remain undecided about a college major at the end of their senior year.