c 1.9 S s

-1.9 < s < -0.9 c , be the probability Let f(s) 1.22 distribution function (pdf) for the random variable S where c is a constant. The pdf is plotted for vour convenience a) Fill in the CDF. When necessary the only variable that couldlshould be entered is the lower case variable s, You shoul( determine what the value for c is and enter it as a number. (if rounding use at least 5 digits after the decimal point). when oo < s < 1.9 when 1.9 s < 0.9 when 0.9 s < 0 when 0 s < 1.22 when 1.22 s < oo (if rounding u b) 30% of the time S is less than what value? at least 5 digits after the decimal point). c) What is the absolute value of the standard deviation of S, (if rounding use at least 5 digits after the decimal SD[sl point).