3. A survey of 240 freshmen found that 160 took Math, 145 took English, and 30 took neither Math nor English.
a). Draw a Venn diagram, and label the sections with numbers.
1. what the probabilty that the student took Maths or English ?
Thank you for helping me with this homework, I really need it to boost my Maths grade for the end of the semester !
Thanks !
+130556 Unfortunately.......the app that enables us to upload images is not working at this time.....I can describe the Venn diagram to you, however
Outside the cirlces there will be a category "Neither" this will = 30
There will be two circles intersecting........the left circle can be labeled "Math" and the right one "English" the intersecting part can be labeled "Both"
In the leftmost part of the Math circle, we have the number 65
In the intersection of the circles [ "Both"] we will have the number 95
In the rightmost part of the English circle we will have the number 50
Probability that they took Math (M) or English (E) is given by:
P(M or E) = P(M) + P(E) - P(M and E) =
160/240 + 145/240 - 95/240 = 210/240 = 7/8 = about 87.5%
+130556 Unfortunately.......the app that enables us to upload images is not working at this time.....I can describe the Venn diagram to you, however
Outside the cirlces there will be a category "Neither" this will = 30
There will be two circles intersecting........the left circle can be labeled "Math" and the right one "English" the intersecting part can be labeled "Both"
In the leftmost part of the Math circle, we have the number 65
In the intersection of the circles [ "Both"] we will have the number 95
In the rightmost part of the English circle we will have the number 50
Probability that they took Math (M) or English (E) is given by:
P(M or E) = P(M) + P(E) - P(M and E) =
160/240 + 145/240 - 95/240 = 210/240 = 7/8 = about 87.5%
