A gold digging company determines there is a 20 % chance of successfully mining gold in a given mining site. i) What is the probability that the first successful extraction of gold comes from the third mining site? ii) What is the probability that the third successful extraction of gold comes from the seventh mining site? iii) What is the mean number of mining sites that must be mined to successfully extract gold 3 times? iv) What is the variance of the same number of mining sites?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
icon
Related questions
Topic Video
Question
### Gold Digging Probability Study

A gold digging company determines there is a 20% chance of successfully mining gold in a given mining site.

#### Questions:

**i) What is the probability that the first successful extraction of gold comes from the third mining site?**

**ii) What is the probability that the third successful extraction of gold comes from the seventh mining site?**

**iii) What is the mean number of mining sites that must be mined to successfully extract gold 3 times?**

**iv) What is the variance of the same number of mining sites?**
Transcribed Image Text:### Gold Digging Probability Study A gold digging company determines there is a 20% chance of successfully mining gold in a given mining site. #### Questions: **i) What is the probability that the first successful extraction of gold comes from the third mining site?** **ii) What is the probability that the third successful extraction of gold comes from the seventh mining site?** **iii) What is the mean number of mining sites that must be mined to successfully extract gold 3 times?** **iv) What is the variance of the same number of mining sites?**
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Data Collection, Sampling Methods, and Bias
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, probability and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON