Given a normal distribution with mean = 100 and standard deviation = 10, between what two values symmetrically distributed around the mean will 95% of the values lie? O 80.4 to 119.6 O 87.2 to 112.8 O 74.5 to 124.5 O 91.6 to 108.4 QUESTION 2 In a coin toss, what is the probability of at least 2 heads out of 3 tosses? O 0.625 O 0.5 O 0.375 O 0.25 QUESTION 3 Of the following, the measure of central tendency is O the interquartile range the ceofficient of variation the median the correlation coefficient QUESTION 4 If the median is greater than the mean- O skewed right O skewed positive O skewed negative O Do not mark this one QUESTION 5 The normal distribution O is right-skewed O is left-skewed O is also called the Gaussian distribution O Has higher probability away from the mean than near the mean.QUESTION 6 What is the standard deviation of the data set 1 8 for a sample? O 3.5 O 24.5 O 4.95 O 5.65 QUESTION 7 Of the following, the only true response is O In the data set 1 3 5 the mean and median are different numbers O Buffett says be greedy when others are greedy. be fearful when others are fearful O In a right-skewed distribution the distance from Q1 to the median is less than the distance from the median to Q3 O Amazon reported worse-than-expected results in its latest earnings report QUESTION 8 In a normal distribution, the mean is 100 and the standard deviation is 10. What is the probability of a randomly drawn observation being more than 105? O 0.6915 O 0.3085 O 0.2535 O 0.6536 QUESTION 9 In an hour, the average number of arrivals at a bank counter is 1.1. What is the probability of 6 arrivals in a 1-hour shift? O 0.0738 O 0.0174 O 0.0008 O 0.0135 QUESTION 10 The best answer would be O The normal distribution is symmetrical O The Poisson distribution is right-skewed O The exponential distribution is left-skewed Both A and B