grouped vs ungrouped data

It is obtained by adding the raw scores and dividing the sum by the number of items. Suppose the raw scores are x 1 , x 2 , x 3 ,, x N then, mean where M = mean x = each score or item N = number of items = sigma, which means 'summation of ' Find the mean of 6, 10, 4, 12, 8. M = 8 ..

The formation of thioalcohols or thiols takes place when haloalkane is treated with-sodium or potassium hydrogen sulphide: the halogen atom gets replaced by hydrosulphide (-SH) group. ..

On treatment with mercaptide ion (RS - ) haloalkanes give thioethers. Thioethers are also formed by heating the haloalkanes with sodium or potassium sulphide. ..

A group of data that appear often on a line plot form a _______. => Cluster or Outlier or Mode or None of the above..

The tally chart represents the numbers of balloons bought by a group of girls. Which graph represents the data correctly? => Graph 3 or Graph 4 or Graph 2 or Graph 1..

The ages of group trekking the Swiss Alps mountain are displayed in the stem-and-leaf plot. How many data values above 36 are there in the plot? => 3 or 5 or 2 or 4..

Comparing center and spread: within group, between group variation Comparing clusters and gaps Comparing outliners and other unusual features Comparing shapes Exploring bivariate data: Analyzing patterns in scatterplots Correlation and linearity Least..

The ages of group trekking the Swiss Alps mountain are 25, 54, 25, 33, 83, 33, 55, 65, 34, 35 and 25. How many leaves are there in the data? => 11 or 3 or 10 or 4..

A surveyor asked a group of people which city they like the most. Using the data in the given line plot, find the probability of choosing a person who likes city C the most. => 5 12 or 11 12 or 7 12 or 1 12..

Select the wrong statement(s). I. Two major branches of statistics are statistics and probability. II. A group of all subjects under study is called a population. III. Statistics is the science of conducting studies to collect, organize, summarize, analyze and draw conclusions from d..