The temperatures (in degrees Fahrenheit) observed during seven days of summer in Los Angeles are: 78 99 68
91
95 75 85
The range of these temperatures is:
The variance of these temperatures, rounded to three decimals, is:
The standard deviation, rounded to three decimals, of these temperatures is:

Which statement is true about the extreme value of the given quadratic equation? a. the equation has a maximum value with a y-coordinate of -21. b. the equation has a maximum value with a y-coordinate of -27. c. the equation has a minimum value with a y-coordinate of -21. d. the equation has a minimum value with a y-coordinate of -27.