eviation of 18 pesos. Assuming that the daily salary is normally distributed, fi umber of workers who earn: a) from 310 pesos to 352 pesos per day ɔ) < 345 per day =) > 370 per day

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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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?
Transcribed Image 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?
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