You are tasked to do the following: 1. Choose any 5 of your classmates 2. From your 5 classmates, record each result of their first quiz in Math (Stat and Prob or Calculus) of 3rd Quarter Period 3. Calculate the MEAN, VARIANCE & STANDARD DEVIATION 4. You need to write a report listing the names of your classmates and submit to or send here not later than a week after the date of assignment. 5 CLASSMATE SCORES KYLA - 19 ANTHONY -17 JADE - 20 RAVEN - 16 JEFFREY - 18Example: 3: The number of items sold per day at a retail store, with its conespending probabilities, is shown in the table. Find the variatice and standard deviation of the probability distribution. 19 20 2 22 Proteabelity 0.80 0.80 0.30 0.20 0.10 & = 19(0.20) + 20(0.20) + 21(0.30) + 22(0.20) + 23(0.10) 4 = 20.8 T [192(0.20) + 203(0.20) + 213(0.30) + 227(0.20) + 23*(0.10)] - (20.8) 1.56 The variance is 1.56 and the standard deviation is 1.28 7 V1.56 Solution SampleExample 2: Find the variance and standard Example 3: The deviation for rolling a single die. its correspondi varianice and st 2 Probvitality Pm P = 1(2)+2()+3( )+4()+5( )+6(5) 4 = 19(0.2 20.8 32 = [13(7)+22(2) + 32()+42()+ 53(@)+63(=)] -(3.5)2 2 = [19 (0.20)+ 191 - 12.25 0 = V2.92 Solution 0- - 292 0 = 171 sample 7 = V1.56