Fill in the blanks using the drop-down menu a] A value that is two standard deviations below the mean has a Zscore of l Select], V -2 b}Astandard normal has a mean of [Select] V and a 0 V . 2 1 r Fill in the blanks using the drop-down menu a) A value that is two standard deviations below the mean has a z-score of [ Select ] b) A standard normal has a mean of [ Select ] V and a standard deviation of [ Select ] V [ Select infinity 0Fill in the blanks using the drop-down menu a) A value that is two standard deviations below the mean has a z-score of [ Select ] v b) A standard normal has a mean of [ Select ] and a standard deviation of [ Select ] [ Select ] cannot be determinedA survey among freshman at a certain university revealed that X: the number of hours spent studying in a week before final exams is normally distributed with average (mean) / = 20 hours and standard deviation o = 4.5 hours. a) The 98th percentile of the number of hours spent by the freshman for their final exams is [ Select ] [ Select ] P(X