Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

According to Information Please Almanac. 80% of adult smokers started smoking before turning 18 years of age. Assume 10 smokers, 18 years of age or older are randomly chosen and the number of smokers who started smoking before 18 is recorded.

1.  Find out the probability P (1.23)

2. Suppose the random variable X is normally distributed with the mean =50 and standard deviation =7 find out P(X)

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922697

Have any Question? 


Related Questions in Statistics and Probability

A student scored 81 on a chemistry test and 75 on a history

A student scored 81 on a chemistry test and 75 on a history test. For the chemistry test, the mean was 70 and the standard deviation was 20. For the history test, the mean was 65 and the standard deviation was 8. Did the ...

A simple random sample of 120 men results in a mean of 80

A simple random sample of 120 men results in a mean of 80 beats per minute, and a standard deviation of 11 beats per minute. Based on the sample results, the researcher concludes that the pulse rates of men have a standa ...

Entertainment software association would like to test if

Entertainment Software Association would like to test if the average age of "gamers" (those that routinely play video games) is more than 30 years old. A random sample of 33 gamers was selected and their ages were record ...

An airline company is considering a new policy of booking

An airline company is considering a new policy of booking as many as 158 persons on an airplane that can seat only 160. (Past studies have revealed that only 90% of the booked passengers actually arrive for the flight.) ...

1 why must researchers ensure that their experimental

1. Why must researchers ensure that their experimental groups are roughly equivalent before manipulating the independent variable? 2. Discuss the relative advantages and disadvantages between within-subjects designs and ...

Please show the work step by step to make it

Please show the work step by step to make it understandable. A random sample of 16 students showed that the variance in the number of hours they spend studying for a final exam was 25 hours 2 Part a. Construct a 95% conf ...

How did the supreme court aid the development of a market

How did the Supreme Court aid the development of a market economy?

In a survey of 617males agesnbsp18-64 396 say they have

In a survey of 617males ages 18-64, 396 say they have gone to the dentist in the past year. Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the co ...

Assuming data come from a random sample under which of the

Assuming data come from a random sample, under which of the following conditions should we notcalculate a confidence interval for a population mean? A. Population is normally distributed and sample size is 50 individuals ...

1 show by example that if a and b are two matchings not

1. Show by example that if A and B are two matchings (not necessarily stable), then A ∨w B is not necessarily a matching. 2. Prove that when the partial ordering over the set of stable matchings is , the minimum of the s ...

  • 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