# statistics

Among the 500 first year students of college, 270 students study computer science, 345 students study mathematics, and 175 students study both computer science and mathematics. If one student is selected at random, find the probability that he did not take either of these subjects

1. 👍 0
2. 👎 0
3. 👁 266
1. 1011

1. 👍 0
2. 👎 0
2. P[C.S]=270/500
P[Maths]=345/500
P[C.S ∩ Maths]=175/500
( P[C.S U Maths] )' = ?
ANS.
( P[C.S U Maths] )' = 1-P[C.S U Maths]
=1-{P[C.S] + P[Maths] - P[C.S ∩ Maths]}
=1-{270/500 + 345/500 -175/500 }
=1-{440/500}
=1-0.88
=0.12

1. 👍 0
2. 👎 0
3. A(-5,3)<B (-9,7)

1. 👍 0
2. 👎 0

## Similar Questions

1. ### maths

In a class of 80 students, 53 study Art, 60 study Biology, 36 study Art and Biology, 34 study Art and Chemistry, 6 study Biology only and 18 study Biology but not Chemistry. Illustrate the information on a Venn diagram. Determine

asked by Kwame on September 20, 2016
2. ### statistics

The Office of Student Services at a large western state university maintains information on the study habits of its full-time students. Their studies indicate that the mean amount of time undergraduate students study per week is

asked by Anonymous on October 12, 2014
3. ### Math

I have a bar graph that shows the number of students by major in the College of Arts and Science. Math shows 200 students History shows 300 students English shows 400 students Science shows 150 students Other shows 175 students

asked by Carrie on March 6, 2010
4. ### E

(1) Many people wonder why schools should bother teaching students about music. (2) The answer to that is clear. (3) Music education is as useful outside the classroom as it is inside the classroom. (4) Students who study music

asked by Anonymous on April 11, 2018
1. ### math

A class survey in a large class for first-year college students asked, “About how many minutes do you study on a typical weeknight?” The mean response of the 463 students was = 118 minutes. Suppose that we know that the study

asked by jordon on March 27, 2015
2. ### language arts

Choose the detail that would best support the following main idea for an argumentative essay. Studying on a regular basis improves grades. 1 students who study also try to eat healthier snacks 2 Students who study on a regular

asked by hunter on February 10, 2017
3. ### Math

In a class of 40 students,the number of students who study history is 10 more than those who study French,if 8 students study both subject,then how many study French and how many study history ?

asked by Anonymous on October 3, 2019
4. ### Ven diagram

70 students are stydying physics mathematics and chemistry. 40 students study mathematics, 35 study physics and 30 students students chemistry.15 students are studying all the subjects. How many students are studying exactly two

asked by Malay on April 2, 2018
1. ### math

The stem-and-leaf plot shows the test scores of a science class. Use the plot to answer the question. 1.how many students scored 78? (1 point) 1 student 2 students 3 students 4 students

asked by Help on May 16, 2018
2. ### Economics

Suppose a university decides to alter its tuition schedule by separating its students based on how many years of college they have completed. Most university programs require four years to complete. First-year students would get a

asked by Max on October 17, 2017
3. ### Math And Science for Young Children

After assessing your students, what question should you ask as you start organizing for teaching? A. What do my students know about this science topic? B. What is the appropriate science content that my students need to know? C.

asked by Tonya on January 9, 2016
4. ### Statistics

A class survey in a large class for first-year college students asked, "About how many minutes do you study on a typical weeknight?" The mean response of the 463 students was x = 118 minutes. Suppose that we know that the study

asked by Ray on February 25, 2014