Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

1. What are the different methods of collecting Primary data? Which of these is most reliable and why?

2. The frequency distribution of weight in grams of mangoes of a given variety is given below. Compute Arithmetic Mean and Median.
Weight in grams         410-419        420-429       430-439       440-449     450-459    460-469    470-479
Number of mangoes       14                20                  42               54             45              18            7

3. What do you understand by Statistics? Describe its Scope.

4. Compute the Mean and Standard Deviation for the following data:

Value                 90-99      80-89    70-79      60-69    50-59    40-49   30-39
Frequency            2              12          22           20       14          4            1

5. What do you understand by tabulation? Describe the purpose of tabulation. What precautions would you take in tabulating statistical data?

6. What do you understand by Regression? Describe the different properties of Regression.

7. Given table gives the Index number of Security prices of joint stock

Company pertaining to shares and debentures:

Share Price Index               73.2        85.8     78.9     75.8         77.2         81.2         93.8 
Debenture Price Index        97.8        99.2      98.8     98.3         98.3         96.7         97.1

Find Rank Correlation coefficient.

8. Fit a straight line trend and find out the trend values for the output of sugar. Also compute the sugar output for 2009.

Year                             2002        2003        2004     2005       2006      2007       2008
Output (‘000 bags)         90            100         104         88         98         106        110

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M99447

Have any Question? 


Related Questions in Statistics and Probability

A researcher conducted an experiment on the effects of a

A researcher conducted an experiment on the effects of a new "drug" depression. The researcher had a control group, and an experimental group that received nothing, a placebo group, and an experimental group that receive ...

If the difference between two means is not statistically

If the difference between two means is not statistically significant, how certain are you that the independent variable really does not affect the dependent variable?

Three experiments investigating the relation between need

Three experiments investigating the relation between need for cognitive closure and persuasion were performed. Part of the study involved administering a "need for closure scale" to a group of students enrolled in an int ...

Let a be a matching not necessarily stable and let maom be

Let A be a matching (not necessarily stable), and let MA,Om be the set of men who prefer the women to whom they are matched under A to the women to whom they are matched under the men's courtship matching Om. (a) Prove t ...

1 if the independent variable has absolutely no effect on

1. If the independent variable has absolutely no effect on the dependent variable, will the means of the experimental conditions be the same? Why or why not? 2. An ANOVA for a one-way design partitions the total variance ...

Suppose that a certain college class contains 42 students

Suppose that a certain college class contains 42 students. Of these, 23 are freshmen, 28 are history majors, and 8 are neither. A student is selected at random from the class. (a) What is the probability that the student ...

1 what are time-series research designs and how are they

1. What are time-series research designs, and how are they used to learn about changes in behavior over time? 2. What types of independent variables can be used in participant-variable research designs, and what conclusi ...

An airplane manufacturer currently produces six models of

An airplane manufacturer currently produces six models of airplanes for commercial sale. the airline that lauren works for is rapidly expanding and would like to purchase three airplanes of different models to service va ...

Regression analysiscalculate then explaininterpret the

Regression analysis Calculate then explain/interpret the following 14 tasks/tests using the dependent variable (labeled Y)(Sales) and the independent variables (labeled X1 (Calls), X2 (Time), and X3(Years)). Attached is ...

Let x have a poisson distribution with parameter lambda

Let X have a Poisson distribution with parameter lambda. Show that E(X)= lambda directly from the definition of expected value. [Hint: The first term in the sum equals 0, and then x can be canceled. Now factor out lambda ...

  • 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