Mathematics, 29.10.2020 18:00 rubimachuca1020
Twenty employees have applied for promotions. This year 7 promotions were awarded. If a random sample of 5 applications was selected.
a. What is the probability that at most 2 employees were promoted?
b. What is the probability that no employees were promoted?
c. Find the value of the expected value and the variance of this distribution.
Answers: 3
Another question on Mathematics
Mathematics, 21.06.2019 20:00
Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?
Answers: 3
Mathematics, 21.06.2019 22:00
1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25
Answers: 2
You know the right answer?
Twenty employees have applied for promotions. This year 7 promotions were awarded. If a random sampl...
Questions
Mathematics, 10.10.2021 15:50
History, 10.10.2021 15:50
Mathematics, 10.10.2021 15:50
Biology, 10.10.2021 15:50
Chemistry, 10.10.2021 15:50
Mathematics, 10.10.2021 15:50
Computers and Technology, 10.10.2021 15:50
Mathematics, 10.10.2021 15:50
Physics, 10.10.2021 15:50
English, 10.10.2021 15:50
History, 10.10.2021 15:50
Social Studies, 10.10.2021 15:50
Mathematics, 10.10.2021 15:50
