![subject](/tpl/images/cats/mat.png)
Mathematics, 17.04.2020 01:47 angtrevv
In North Dakota, the probability that someone is unemployed is 0.023. We surveyed 1000 people in that state, and let X be the number of people who are unemployed. Find Var(X). Round your answer to the nearest whole number.
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:00
At the beginning of the day, stock xyz opened at $6.12. at the end of the day, it closed at $6.88. what is the rate of change of stock xyz? a. 1.17% b. 11.0% c. 12.4% d. 81.5%
Answers: 1
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:30
Amachine that produces a special type of transistor (a component of computers) has a 2% defective rate. the production is considered a random process where each transistor is independent of the others. (a) what is the probability that the 10th transistor produced is the first with a defect? (b) what is the probability that the machine produces no defective transistors in a batch of 100? (c) on average, how many transistors would you expect to be produced before the first with a defect? what is the standard deviation? (d) another machine that also produces transistors has a 5% defective rate where each transistor is produced independent of the others. on average how many transistors would you expect to be produced with this machine before the first with a defect? what is the standard deviation? (e) based on your answers to parts (c) and (d), how does increasing the probability of an event a↵ect the mean and standard deviation of the wait time until success?
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 00:00
Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read
Answers: 3
You know the right answer?
In North Dakota, the probability that someone is unemployed is 0.023. We surveyed 1000 people in tha...
Questions
![question](/tpl/images/cats/biologiya.png)
Biology, 19.03.2020 17:03
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 19.03.2020 17:03
![question](/tpl/images/cats/himiya.png)
Chemistry, 19.03.2020 17:03
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
English, 19.03.2020 17:04
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
Health, 19.03.2020 17:04
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 19.03.2020 17:04
![question](/tpl/images/cats/mat.png)
Mathematics, 19.03.2020 17:04
![question](/tpl/images/cats/mat.png)
Mathematics, 19.03.2020 17:04
![question](/tpl/images/cats/biologiya.png)
Biology, 19.03.2020 17:04
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 19.03.2020 17:05
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 19.03.2020 17:05