Applied Mathematics

Inferential Statistics

Easy

applied

Match List I with List II

LIST I LIST II
A. A special characteristic of a population is known as a: I. statistic
B. A special characteristic of a sample is known as a: II. Confidence interval
C. The uncertainty of a sampling process is expressed by: III. Estimation
D. The process by which one makes the inferences about a population based on the information obtained from a sample is known as: IV. Parameter

Choose the correct answer from the options given below:

LIST I	LIST II
A. A special characteristic of a population is known as a:	I. statistic
B. A special characteristic of a sample is known as a:	II. Confidence interval
C. The uncertainty of a sampling process is expressed by:	III. Estimation
D. The process by which one makes the inferences about a population based on the information obtained from a sample is known as:	IV. Parameter

A-II, B-III, C-IV, D-I

A-I, B-IV, C-II, D-III

A-IV, B-I, C-II, D-III

A-IV, B-I, C-III, D-II

✅ Correct Option: 3

Population characteristic = Parameter (IV). Sample characteristic = Statistic (I). Uncertainty of sampling = Confidence interval (II). Process of inferring about population from sample = Estimation (III). Matching: A-IV, B-I, C-II, D-III.

2023: 22 May Shift 3

For testing the difference between the means of two samples, the following data is available :

	Size	Mean	Variance
Sample 1	5	40	101
Sample 2	7	30	60

The value of the t-statistics is :

2023: 15 June Shift 2

Match List - I with List - II.

List - I	List - II
(A) A special characteristic of a population is called	(I) Sample Size
(B) The number of statistical individuals in a sample is called	(II) Statistic
(C) A special characteristic of a sample is called	(III) Standard error
(D) The standard deviation of the sampling distribution of a statistic is known as its	(IV) Parameter

Choose the correct answer from the options given below :

2026: 14 May Shift 2

Five students are selected at random from a school and their weights are found to be 50, 51, 53, 54 and 62. The point estimation of the population mean is:

2023: 7 June Shift 1

Which of the following is not a statistic ?

2026: 14 May Shift 2

Match the LIST-I with LIST-II

	LIST-I		LIST-II
A.	Simple random sampling	I.	to get a team of 7 students with AI knowledge, selecting one of the students who will bring 6 more students.
B.	Stratified sampling	II.	Asking colleagues to complete a survey for research work
C.	Convenience sampling	III.	Selection of 100 employees from a company with 500 employees keeping gender balance in mind
D.	Snowball sampling	IV.	Selection of 50 guests randomly from a party

Choose the correct answer from the options given below:

2023: 11 Aug Shift 1

A Simple random sample consists of four observation 1, 3, 5, 7. The point estimate of population standard deviation is

Solution

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