User Account

All Pages

Determine the standard deviation of x

Assignment Help Basic Statistics
Reference no: EM132845876

1. x P(x) 0 0.17 1 0.45 2 0.20 3 0.12 4 0.06>4 0.00

The following probability distribution table is for the random variable, x, the number of children under the age of 20 years in households of a small town. Remember to show all work to answer the following questions.

a) Determine the mean of x.

b) Determine the standard deviation of x.

c) Find the probability of a household consisting of 3 or more children under the age of 20

Round all answers a - c to 2 decimal places.

Reference no: EM132845876

Questions Cloud

How often do you think teachers should be collecting data : Teachers sometimes report that collecting adequate progress monitoring documentation is time consuming and takes time away from teaching students.
What is best strategy for playing : What is your best strategy for playing? Explain using information you learned in this module's material, such as expected value.
Describe the components that encompass sw-pbis : Based on the readings, there are specific components that encompass SW-PBIS. Please describe any additional components that you think should also be included.
Explain the importance of reliability and validity : You are talking to Mr. Franklin about your options for informal classroom assessments as you are waiting for Manuel's cumulative folder to arrive from.
Determine the standard deviation of x : The following probability distribution table is for the random variable, x, the number of children under the age of 20 years in households of a small town.
Describe what cultural diversity means to you : Using what you learned in this week's reading assignment, describe what cultural diversity means to you. In your description, be sure to include identifiers.
Describe the difference between research and quality : Describe the difference between research and quality improvement. Provide a workplace example where qualitative and quantitative research
Identify social inequality that exists in the united states : Identify a social inequality that exists in the United States today to address in this assignment (inequalities in economics and work, law and justice.
What is the probability of the outcomes : 1. We are flipping a coin 6 times. What is the probability of the outcomes to be: (Binomial distribution).

Reviews

Write a Review

Basic Statistics Questions & Answers

  To minimize the number of bulbs that burn out during

a large manufacturing plant uses lightbulbs with lifetimes that are normally distributed with a mean of 1000 hours and

  Historical average lifetime for cartridges

The sample mean and standard deviation were determined to be 1511.4 pages and 35.7 pages, respectively. The historical average lifetime for cartridges produced by the current process is 1502.5 pages. At α = .05, test the claim that the new cartridge ..

  Confidence interval for the population proportion of bulbs

the margin of error for a 95% confidence interval and then construct to the 95% confidence interval for the population proportion. Construct a 95% confidence interval for the population proportion p of all Twinkle bulbs.

  State four characteristics of the standard deviation

Based on the empirical rule, what percentage of data fall within 1 SD, 2 SD, and 3 SD of the mean for data that are distributed normally?

  What statistical test should be used to analyze these data

What statistical test should be used to analyze these data? Identify H0 and Ha for this study. Conduct the appropriate analysis.

  How many employees earn more than the mean wage

Payroll. A small warehouse employs a supervisor at $1200 a week, an inventory manager at $700 a week, six stock boys at $400 a week, and four drivers at $500.

  Determine the null and alternative hypotheses

A simple random sample of size n = 40 is drawn from a population. The sample mean is found to be 106.7?, and the sample standard

  Proportions of unacceptable assemblies

If you are interested in determining if there is sufficient evidence to conclude, at the 10% significance level, that the two teams differ with respect to their proportions of unacceptable assemblies, what is/are the critical value you would use t..

  What is the internal rate of return? of opportunity

Suppose you invest $2,000 today and receive $9,500 in five years. a. What is the internal rate of return? (IRR) of this? opportunity?

  Number of corporate scandals

As evidenced by the growing number of corporate scandals of which almost all involve the CEO and other top officers, corporate America in many cases is missing one essential leadership ingredient-character.

  A discrete random variable x can assume 5 possible values 2

a discrete random variable x can assume 5 possible values 2 4 6 7 and 9. its probability distribution is shown

  Review problem ob the theater tickets

You have made plans to attend the theater alone. The tickets cost $20 each. Consider the following two scenarios.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd