detailed solution

II. Classification Type: Classify these variables as to Qualitative and Quantitative and further more as to discrete or continuous variable if the type of variable is quantitative. Variable Type of Variable Type of Quantitative variable 1. Covid-19 patients 2. Number of modules 3. Tally score 4. Pressure during online class 5. DDS supporter 6. Hard work of a farmer 7. Sand in manila bay 8. Temperature today 9. Stress Level 10. SadnessThe probabilities that a surgeon operates on 3, 4, 5, 6, or 7 patients in any day are 0.15, 0.10, 0.20, 0.25 and 0.30 respectively. Find the average number of patients that a surgeon operates on a day and the standard deviation. Number of Patients 3 4 5 6 7 Probability 0.15 0.10 0.20 0.25 0.30 P(X) Mean H = E [ x . P (X =x ) ] Variance o' = E ( x - [ ) . P(X=x)