The following pseudocode works, but it performs a case-sensitive validation of the user's input. how could the algorithm be improved so the user does not have to pay attention to capitalization when entering a name? //this program asks the user to enter a string//and validates the input. declare string choice//get the user's response. display "cast your vote for chess team captain." display "would you like to nominate lisa or tim? " input choice//validate the input. while choice ! = "lisa" and choice ! = "tim" display " enter lisa or tim." display "cast your vote for chess team captain." display "would you like to nominate lisa or tim? " input response end while

Explain the circumstances for which the interquartile range is the preferred measure of dispersion. what is an advantage that the standard deviation has over the interquartile range? choose the correct answer below. a. the interquartile range is preferred when the distribution is symmetric. an advantage of the standard deviation is that it increases as the dispersion of the data increases. b. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation. c. the interquartile range is preferred when the distribution is symmetric. an advantage of the standard deviation is that it is resistant to extreme values. d. the interquartile range is preferred when the data are bell shaped. an advantage of the standard deviation is that it is resistant to extreme values. e. the interquartile range is preferred when the data are skewed or have outliers. an advantage of the standard deviation is that it uses all the observations in its computation. f. the interquartile range is preferred when the data are bell shaped. an advantage of the standard deviation is that it increases as the dispersion of the data increases.