Business mathematics and statistics mcqs pdf

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If you want DU B. B Com DU B. You can see some DU B. Complete DU B. EduRev is like a wikipedia just for education and the DU B. Do check out the sample questions of DU B. This is your solution of DU B. To Study DU B. Related courses. Business Mathematics and Statistics docs videos.Mode is the a middle most frequent value b least frequent value c maximum frequent value d none of these.

The algebraic sum of the deviations of a frequency distribution from its mean is always, a greater than zero b less than zero c zero d a non-zero number. While computing mean of grouped data, we assume that the frequencies are a centred at the upper limits of the classes b centred at the lower limits of the classes c centred at the classmarks of the classes d evenly distributed over all the classes 5.

Construction of a cumulative frequency table is useful in determining the a mean b median c mode d none of these. Which of the following can not be determined graphically? The absccissa of the point of intersection of the less than type and of the more than type cumulative frequency curves of a grouped data gives its a Mean b Median c Mode d None of these. The number of families having expenditure range in? The times, in seconds, taken by atheletes to run a m hurdle race are tabulated below:. The number of atheletes who completed the race in less than Mean of items is It was discovered that three items which should have been 60, 70, 80 were wrongly read as 40, 20, 50 respectively. The correct mean is a 48 b 49 c 50 d Choose the correct answer from the given four options : In the formula for finding the mean of grouped data d 1 s are deviation from a of [NCERT Exemplar Problems] a lower limits of the classes b upper limits of the classes c mid points of the classes d frequencies of the class marks.

While computing mean of grouped data, we assume that the frequencies are [NCERT Exemplar Problems] a evenly distributed over all the classes b centred at the classmarks of the classes c centred at the upper limits of the classes d centred at the lower limits of the classes.

The average speed over the entire km will be. Answer: b Explaination:. If x n is replaced by x, then new mean is. Statistics MCQ Question The abscissa of the point of intersection of the less than type and of the more than type cumulative frequency curves of a grouped data gives its [NCERT Exemplar Problems] a mean b median c mode d all the three above. The number of atheletes who completed the race in less then Mode is the value of the variable which has: a maximum frequency b minimum frequency c mean frequency d middle most frequency [CBSE ].

Mode and mean of a data are 12k and 15A. Median of the data is a 12k b 14k c 15k d 16k. The median of set of 9 distinct observations is If each of the largest 4 observations of the set is increased by 2, then the median of the new set a is increased by 2 b is decreased by 2 c is two times of the original number d Remains the same as that of the original set.Listed in the following table are practice exam questions and solutions, and the exam questions and solutions.

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Exams files. Need help getting started? Don't show me this again Welcome! Exam 1 PDF. Solutions to Exam 1 PDF. Exam 2 PDF.

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Solutions to Exam 2 PDF. Final Exam PDF.A new species of soil bacteria that is capable of breaking down organic matter has been discovered by researchers at Cornell University. The bacteria can degrade even cancer causing chemicals that are released on burning of coal, gas, oil and refuse.

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Students know that the end of a study semester and year is not the end of all sufferings. Yes, your essays are behind until the new semester. Nevertheless, you must pass certain exams to summarize the materials you learned during a definite period of time. It serves as a measurement of aptitude and critical thinking.

Statistics MCQs Test

Ascertains the college readiness of a high school student. Introduced as a competitor to the SAT in Last Updated: Apr 11, Developed by: Mindsprite Solutions. Overview Bacterium Para … more words …. Exams are inevitable a … more words …. Statistics mcq - PrAvailable ebook formats: epub mobi pdf lrf pdb txt html. He started his career from a college teaching and then he was associate professor in a university in computer science from to with a research in algorithms, Ad Hoc Networks and ERP systems. He also taught many courses in multiple universities as a visiting professor. With a 19 years of professional and teaching experience, he authored many books for students to help in their academics.

He is also a peer reviewer of research publications in different journals and conference proceedings. Being a software engineer, currently he is providing consultancy services in web development and Hadoop systems.

This book can help to learn and practice Business Statistics quizzes as a quick study guide for placement test preparation. Business Statistics Quiz Questions and Answers pdf also covers the syllabus of many competitive papers for admission exams of different universities from business administration textbooks on chapters: Confidence Intervals and Estimation Multiple Choice Questions: 21 MCQs.

Create Widget. About Arshad Iqbal. Learn more about Arshad Iqbal. Also by This Author. Also by This Publisher. Report this book. Reason for report: — Select a reason — Book is or contains spam Book infringes copyright Same content is published elsewhere with different author for ex. Additional details:.In statistics, we study about the management, observation and calculation generally over a large numerical data.

In the statistical analysis of a survey or research, a researcher is required to know about the distribution, central tendency, dispersion etc.

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It is also needed to know that what would be the variability and location of the given data set. This includes the measurement of skewness of the data, since all given data distributions are not symmetric. We can say that skewness is the measure of asymmetry of the data.

Mathematics MCQs

It also determines if the data is skewed to the left or to the right. Let us go ahead in this page and learn about skewness, its calculation and applications in detail. Measure of skewness determines the extent of asymmetry or lack of symmetry. A distribution is said to be asymmetric if its graph does not appear similar to the right and to the left around the central position.

In more statistical language, the skewness measures how much is the asymmetry of probability distribution of some given real-valued random variable about the mean. Skewness can be observed in the given data when number of observations are less. For Example: When the numbers 9, 10, 11 are given, we may easily inspect that the values are equally distributed about the mean But if we add a number 5, so as to get the data as 5, 9, 10, 11, then we can say that the distribution is not symmetric or it is skewed.

The skewness can be viewed by the having a look at the graph. The measure of skewness can be of two types : positive skew and negative skew. Positive Skew: When the given distribution concentrates on the left side in the graph, it is known as the positive skew.

STATISTICS { 70 MOST IMPORTANT MCQ UGC} PART 1

In the following curve, we may easily observe that the right tail is bigger. This may be called as right-tailed or right-skewed distribution. It is shown in the following diagram :. There are various measures of skewness of the statistical data.

For normal distribution, the measure of skewness is zero. When skewness is negative, it means that the data is left skewed.A numerical value used as a summary measure for a sample, such as sample meanis known as a. None of the above answers is correct. The mean of a sample is a. The sum of the percent frequencies for all classes will always equal. Since the mode is the most frequently occurring data value, it.

Exhibit The following data show the number of hours worked by statistics students. Refer to Exhibit The cumulative relative frequency for the class of 10 - The sum of deviations of the individual data elements from their mean is. The value that has half of the observations above it and half the observations below it is called the.

A statistics professor asked students in a class their ages. On the basis of this information, the professor states that the average age of all the students in the university is 21 years. This is an example of. A tabular summary of a set of data showing the fraction of the total number of items in several classes is a. The standard deviation of a sample of observations equals The variance of the sample equals.

The variance of a sample of 81 observations equals The standard deviation of the sample equals. The mode is.

Statistics Objective & Practice Questions (HOT & Expected Questions for 2020) for Competitive Exams

Exhibit A researcher has collected the following sample data. The mean of the sample is 5. The coefficient of variation is. The interquartile range is. ANSWER: Exhibit The following is the frequency distribution for the speeds of a sample of automobiles traveling on an interstate highway. If the variance of a data set is correctly computed with the formula using n - 1 in the denominator, which of the following is true?

In computing descriptive statistics from grouped data. All of the above answers are correct. When should measures of location and dispersion be computed from grouped data rather than from individual data values? The descriptive measure of dispersion that is based on the concept of a deviation about the mean is. Directions: Answer all Questions and please give me a justification on why you chose that answer. Thank you. It can be less than, greater than, equal to population parameter. It can assume the value of zero.