Author Question: How many different 5-digit sequences can be formed using the digits 0, 1,...,8 if repetition of ... (Read 59 times)

Yi-Chen · **on:** Aug 1, 2018

How many different 5-digit sequences can be formed using the digits 0, 1,...,8 if repetition of digits is allowed?

A) 59,049 B) 40 C) 32,768 D) 30

Question 2

A coin is tossed 20 times. A person, who claims to have extrasensory perception, is asked to predict the outcome of each flip in advance. She predicts correctly on 14 tosses.

What is the probability of being correct 14 or more times by guessing? Does this probability seem to verify her claim?
A) 0.4418 , no B) 0.0582 , no C) 0.0582 , yes D) 0.4418 , yes