![subject](/tpl/images/cats/mat.png)
Mathematics, 04.03.2020 04:08 robert7248
Geologists estimate the time since the most recent cooling of a mineral by counting the number of uranium fission tracks on the surface of the mineral. A certain mineral specimen is of such an age that there should be an average of 6 tracks per cm2 of surface area. Assume the number of tracks in an area follows a Poisson distribution. Let X represent the number of tracks counted in 1 cm2 of surface area.
a)Find P(X = 7).
b)Find P(X ≥ 3).
c)Find P(2 < X < 7).
d)Find μX.
e)Find σX
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:00
What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15
Answers: 1
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:00
If 3 3/4 lb. of candy costs 20.25 how much would 1lb. of candy cost
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 06:00
Pierre is covered by his employers group major medical plan. his employer pays for 75% of the premium and he pays for 25%. how much would a $10000 benefit be taxable as income under this plan
Answers: 1
You know the right answer?
Geologists estimate the time since the most recent cooling of a mineral by counting the number of ur...
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 19.01.2021 19:50
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 19.01.2021 19:50
![question](/tpl/images/cats/en.png)
English, 19.01.2021 19:50
![question](/tpl/images/cats/himiya.png)
Chemistry, 19.01.2021 19:50
![question](/tpl/images/cats/mat.png)
Mathematics, 19.01.2021 19:50
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 19.01.2021 19:50
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 19.01.2021 19:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 19.01.2021 19:50
![question](/tpl/images/cats/health.png)