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i dont understand what they are doing explain the symbols

i dont understand what they are doing explain the symbols

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 11CYU
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i dont understand what they are doing explain the symbols
Given there are a total student of 66 students they have to study at least one of three subjects-Mathematics, Physics and Economics. that is (MUPUE) = 66. Explanation Please refer to solution in this step. Step 2/3 Out of these, 28 students did not choose either Physics or Economics; that is M = 28. 15student did not choose either Mathematics or Economics; that is P = 15. Economics student are present in school. E = 66 − (P + M) (MUP) = 45, (PUE) = 30 66 − (15 +28) = 23 (MP) = M+P − (MUP) (MP) = 28 + 15 - 45 : -2. similarly; = = (PNE) = P + E — (PUE) = 15+23 - (PNE) = 8.
Transcribed Image Text:Given there are a total student of 66 students they have to study at least one of three subjects-Mathematics, Physics and Economics. that is (MUPUE) = 66. Explanation Please refer to solution in this step. Step 2/3 Out of these, 28 students did not choose either Physics or Economics; that is M = 28. 15student did not choose either Mathematics or Economics; that is P = 15. Economics student are present in school. E = 66 − (P + M) (MUP) = 45, (PUE) = 30 66 − (15 +28) = 23 (MP) = M+P − (MUP) (MP) = 28 + 15 - 45 : -2. similarly; = = (PNE) = P + E — (PUE) = 15+23 - (PNE) = 8.
explain simply There are a total of 66 students in a school. They have to study at least one of three subjects Mathematics, Physics and Economics. Out of these, 28 students did not choose either Physics or Economics; 15 students did not choose either Mathematics or Economics; 45 students did not choose Economics; and 30 students did not choose Mathematics. The number of students who did not choose either Mathematics or Economics exceeded the number of students who did not choose Mathematics or Physics by 2. If 5 students chose all three subjects, how many students chose both Economics and Mathematics? (A) 1 (B) 5 (C) 6 (D) 7 (E) 10
Transcribed Image Text:explain simply There are a total of 66 students in a school. They have to study at least one of three subjects Mathematics, Physics and Economics. Out of these, 28 students did not choose either Physics or Economics; 15 students did not choose either Mathematics or Economics; 45 students did not choose Economics; and 30 students did not choose Mathematics. The number of students who did not choose either Mathematics or Economics exceeded the number of students who did not choose Mathematics or Physics by 2. If 5 students chose all three subjects, how many students chose both Economics and Mathematics? (A) 1 (B) 5 (C) 6 (D) 7 (E) 10
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