The post is about MCQs Introductory Statistics. There are 25 multiple-choice questions covering topics related to the measure of dispersions, measure of central tendency, and mean deviation. Let us start with the MCQs introductory statistics quiz with answers.
Online MCQs about Basic Statistics with Answers
MCQs Introductory Statistics with Answers
- A measure of dispersion is always
- Which of these is a relative measure of dispersion
- The measure of spread/dispersion is changed by a change of
- Mean Deviation, Variance, and Standard Deviation of the values 4, 4, 4, 4, 4, 4 is
- The mean deviation of the values, 18, 12, and 15 is
- The sum of squares of deviation is least if measured from
- The sum of squared deviations of a set of $n$ values from their mean is
- Variance is always calculated from
- The lowest value of variance can be
- The variance of a constant is
- Variance remains unchanged by the change of
- $Var(2X+3)\,$ is
- If $a$ and $b$ are two constants, then $Var(a + bX)\,$ is
- Suppose for 40 observations, the variance is 50. If all the observations are increased by 20, the variance of these increased observations will be
- Standard deviation is calculated from the Harmonic Mean (HM)
- The variance of 5 numbers is 10. If each number is divided by 2, then the variance of new numbers is
- If $X$ and $Y$ are independent then $SD(X-Y)$ is
- If $Y=-8X-5$ and SD of $X$ is 3, then SD of $Y$ is
- The standard deviation is always ———– than the mean deviation
- If the standard deviation of the values 2, 4, 6, and 8 is 2.58, then the standard deviation of the values 4, 6, 8, and 10 is
- For the symmetrical distribution, approximately 68% of the cases are included between
- The percentage of values lies between $\overline{X}\pm 2 SD\,$ is
- The measure of Dispersion can never be
- If all values are the same then the measure of dispersion will be
- The range of the values -5, -8, -10, 0, 6, 10 is
1st question answer should be 2.33, i think, plz check.
It becomes very difficult to identify that about which question you are asking about. There is seven MCQs Test for Basic Statistics and for online test most of the questions are randomly generated. However, for I traced option having 2.33 from the text MCQs, and found that answer is correct.
Perhaps the question is related to the standard deviation of 2, 4, 6, and 8. And the standard deviation of 4, 6, 8, and 10.
If this is not the MCQ you are asking about then it is better to mention the test number and question rather just mentioning the 1st question.