STT205 Tma Solutions 1. \(\bar{X}=A+\frac{\sum (_{Xi – A})}{n}\) is the formula for calculating the __________ —>> Assumed mean Arithmetic mean Deviation mean Coding mean 2. _______ is used by a person or people other than the person or people by …

Given the mean of the upper and the lower class boundaries, that is, 10.5 and 20.5 respectively. Obtain the class mark? _______ 64.5 —>> 15.5 24.5 20.5

______ may be person, place, and thing on which we make observations. —>> Entity Statistics Variable Population

_______ a scientific approach to presentation of numerical information in such a way that one will have a maximum understanding of the reality represented by such information. Statistic Questionnaire —>> Statistics Variable

A ________ is a table showing the values of the data and the number of occurrence of each of the values. Binomial distribution Poisson distribution Normal distribution —>> Frequency Distribution

Accident fatalities on a particular road over a period of time collected from the Police or Road safety corps is an example of _______ —>> Secondary Data Primary Data Direct observation Mail questionnaire

____ is the variable that can only assume whole numbers. —>> Discrete Variable Continuous variable Double variable Single variable

\(\bar{X}=A+\frac{\sum (_{Xi – A})}{n}\) is the formula for calculating the __________ —>> Assumed mean Arithmetic mean Deviation mean Coding mean

______ is used by a person or people other than the person or people by whom or for whom the data was collected. Primary Data —>> Secondary Data Direct observation Mail questionnaire

Government uses ________to assess the trends in the economy so that it can plan future policies Statistic Questionnaire —>> Statistics Variable

_______ are data collected by or on behalf of the person or people who are going to make use of the data. Secondary Data —>> Primary Data Direct observation Mail questionnaire

STT205 Question: A bag contains 4 red balls, 3 blue balls and 5 yellow balls. If a ball is selected at random, find \nthe probability that the ball will be blue or yellow. Answer: 0.6667 Question: An um containslO balls …