Adding probability:
There are 600 students in a high school junior class. Of these 600 student...
Mathematics, 18.03.2020 19:01 reycaden
Adding probability:
There are 600 students in a high school junior class. Of these 600 students, 350 regularly wear a watch to school, 325 regularly wear earrings, and 300 regularly wear a watch and earrings. Using this information, answer each of the following questions.
Let W be the event that a randomly selected junior regularly wears a watch and E be the event that a randomly selected junior regularly wears earrings.
1) What is P(W) the probability that a junior wears a watch?
2)What is P(E) the probability that a junior wears earrings?
3)What is P(W and E) the probability that a junior wears a watch and earrings?
4)What is P(W or E) the probability that a junior wears a watch or earrings?
Answers: 3
Mathematics, 21.06.2019 15:30
Sunday: 1 1 2 monday: 1 tuesday: 2 1 2 wednesday: 1 3 4 thursday: 2 friday: 1 1 2 saturday: 2 jenna is a swimmer and trains every day. the schedule shown outlines the number of hours she trains each day. what is the total number of hours that jenna trains during the week?
Answers: 3
Mathematics, 21.06.2019 20:00
1: 4 if the wew 35 surfboards at the beach how many were short boards?
Answers: 1
Mathematics, 21.06.2019 21:30
Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?
Answers: 3
Mathematics, 21.06.2019 23:00
Y= 4x + 3 y = - 1 4 x - 5 what is the best description for the lines represented by the equations?
Answers: 1
Mathematics, 11.11.2020 01:30
Mathematics, 11.11.2020 01:30
Mathematics, 11.11.2020 01:30
History, 11.11.2020 01:30
Physics, 11.11.2020 01:30
Mathematics, 11.11.2020 01:30
Mathematics, 11.11.2020 01:30
English, 11.11.2020 01:30
Mathematics, 11.11.2020 01:30
Social Studies, 11.11.2020 01:30