Direction: Show diagrams and Shade the required area. 1. The average daily salary of 80 construction workers is 350 pesos with a standard deviation of 18 pesos. Assuming that the daily salary is...

Extracted text: Direction: Show diagrams and Shade the required area. 1. The average daily salary of 80 construction workers is 350 pesos with a standard deviation of 18 pesos. Assuming that the daily salary is normally distributed, find the number of workers who earn: (a) from 310 pesos to 352 pesos per day (b) < 345="" per="" day="" (c)=""> 370 per day 2. On the assumption that IQ's are normally distributed with a mean of 90 and a standard deviation of 20, find the proportion of people with IQ's (a) Between 70 and 120 (b) What percentage of cases cannot score more than 95?