Question

A lecture hall has 190 seats with folding arm tablets, 29 of which are designed for left-handers. The average size of classes that meet there is 183, and we can assume that about 14% of students are left-handed. What's the probability that a right-handed student in one of these classes is forced to use a lefty arm tablet? The probability that a right-handed student in one of these classes is forced to use a lefty arm tablet is 0.2. (Round to four decimal places as needed.)

Answer 1

In this Size of class = 183 =n P=0.86 ; q=0:14 M=npa 183 *0.86 = 157,38 q = V183 *0.86*0:14 = 4.69 If there is more than 161 nighties, that is either equal to PCX 3162) = PS X-4 > 162-157-38) =P[Z>0.9851) 162 or more. | PCX 216.) - T 6 7 - 01693