Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

In testing lethal concentration of chemical found in polluted water, researchers have determined that certain concentration will kill 20% of the fish which are subjected to it for 24 hours. 20 fish are placed for 24 hours in the tank containing this concentration of chemical. Let X be the number of fish that are killed after 24 hours.

a. Find out the distribution of X?

b. How many fish are anticipated to be killed?

c. Find out the variance and standard deviation of X?

d. Find out the probability that exactly 6 fish will be killed?

e. Find out the probability that at most 4 fish will be killed?

f. Find out the probability that at least 2 fish will be killed?

g. Given that at most 4 fish are killed, Find out the probability that exactly 4 are killed?

 

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M920548

Have any Question? 


Related Questions in Statistics and Probability

An insurance company checks police records on 1200 randomly

An insurance company checks police records on 1200 randomly selected auto accidents and notes that teenagers were at the wheel in 180 of them. Construct a 90% confidence interval estimate of the proportion of auto accide ...

What were the causes of the cold war also describe the

What were the causes of the Cold War? Also, describe the steps that the USA took to meet the perceived Soviet threat during the 1940s, '50s and '60s. Be sure to include the following topics: Iran crisis of 1946 Iron Curt ...

During a certain week the mean price of gas was 2709 per

During a certain week the mean price of gas was $2.709 per gallon. A random sample of 35 gas stations is drawn from this population. What is the probability that the mean price for the sample was $2.697 and $2.716 that w ...

1 can single-case experimental designs be used to test the

1. Can single-case experimental designs be used to test the effects of various levels of an independent variable (as in a one-way group design)? Explain. 2. How many levels of the independent variable are there in an ABA ...

Regarding probability which of the following isnbspcorrecta

Regarding probability, which of the following is  correct ? a. When events  A  and  B  are mutually exclusive, then  P ( A  and  B ) =  P ( A ) +  P ( B ). b. The union of events  A  and  B  consists of all outcomes in t ...

Data show that narcissistic people who have a grandiose

Data show that narcissistic people (who have a grandiose, inflated perception of themselves) often fly into a "narcissistic rage" when things don't go their way. (In other words, they throw a temper tantrum.) A resea ...

Prove that if player i believes at the state of the world

Prove that if player i believes at the state of the world ω that the state of the world is consistent, then he believes that every player believes that the state of the world is consistent. Deduce that in this case playe ...

1 what are the most common causes of missing data and what

1. What are the most common causes of missing data, and what difficulties do missing data cause? What can be done if data are missing? 2. Comment on the circumstances under which a researcher would consider deleting one ...

Consider the following system of preferences recall that

Consider the following system of preferences (recall that the preferences of the women appear in the lower right side of each cell (read vertically) and the preferences of the men appear on the upper left side (read hori ...

Assignmentthe production department of the newspaper wants

Assignment The production department of the newspaper wants to ensure that the mean blackness of the print for all newspapers is at least 0.97 on a standard scale in which the target value is 1.0. A random sample of 50 n ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro