1. Consider the following Bayesian Network that we induced in class. Atplaces, a variable is referred to by the first letter or the first letters of eachword in the variable name or other obvious mnemonic (e,g., "D" for "Diet"or "HD" for "Heart Disease" or “Hb" for "Heartburn").E- YES07D- Healthy0.25HD - YESExerciseDietD- HEALTHY0.2HD- YESD- UNHEALTHY0.85E- YES,D- HEALTHY0.25HeartE- YES,D- UNHEALTHYE- NO,D- HEALTHYE- NO,D- UNHEALTHYHeartburn0.45Disease0.55CP- YESHD- YESHD - YESHD - YES0.80.750.6BloodChest- NOPressureBP - HIGHPainHD - NO04HD - YESHD - NO- YES0.8502HD- NO0.1HD- NOIf an individual has High Blood Pressure, has a Healthy Diet and Exercisesregularly, what is the probability the person has Heart Disease. Is it (a)0.25, (b) 0.5215, (c) 0.586 2, (d) 0.7165, (e) None of these choices.

Explanation:- We have here:P( HD | D, E) = 0.25 P(BP , D, E, HD ) = 0.7*0.25*0.25*0.85 =…

Consider the following Bayesian Network that we induced in class. At places, a variable is referred to by the first letter or the first letters of each word in the variable name or other obvious mnemonic (e,g., "D" for "Diet" or "HD" for "Heart Disease" or "Hb" for "Heartburn"). E- YES D-Healthy 0.7 0.25 Eerdise Diet H- YES D- HEALTHY D-UNHEALTHY 0.2 HD- YES E-YES, D-HEALTHY 0.25 Heart E-YES, D-UNHEALTHY E-NO, D-HEALTHY Heartburn 0.45 Disease ass CP-VES HD - YES H- YES HD - VES HbNO HD - NO YES HD - NO H- NO E-NO, D-UNHEALTHY 0.8 0.75 0.6 Blood Pressure Chest Pain HIGH 04 HD - YES HD - NO 0.85 02 01 If an individual has High Blood Pressure, has a Healthy Diet and Exercises regularly, what is the probability the per son has Heart Disease. Is it (a) 0.25, (b) 0.5215, (c) 0.5862, (d) 0.7165, (e) None of these choices.

Consider the following Bayesian Network that we induced in class. At places, a variable is referred to by the first letter or the first letters of each word in the variable name or other obvious mnemonic (e,g., "D" for "Diet" or "HD" for "Heart Disease" or "Hb" for "Heartburn"). E- YES D-Healthy 0.7 0.25 Eerdise Diet H- YES D- HEALTHY D-UNHEALTHY 0.2 HD- YES E-YES, D-HEALTHY 0.25 Heart E-YES, D-UNHEALTHY E-NO, D-HEALTHY Heartburn 0.45 Disease ass CP-VES HD - YES H- YES HD - VES HbNO HD - NO YES HD - NO H- NO E-NO, D-UNHEALTHY 0.8 0.75 0.6 Blood Pressure Chest Pain HIGH 04 HD - YES HD - NO 0.85 02 01 If an individual has High Blood Pressure, has a Healthy Diet and Exercises regularly, what is the probability the per son has Heart Disease. Is it (a) 0.25, (b) 0.5215, (c) 0.5862, (d) 0.7165, (e) None of these choices.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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