Default Title

Question (1)

QN0037071

For the grouped data with class intervals 0–10, 10–20, 20–30 and frequencies 3, 5, 2 respectively, what is the mean?

(A) 12
(B) 13
(C) 14
(D) 15

Correct Answer: B

Explanation:

Mean = Σfx/Σf = 130/10 = 13.

Link:

Report Error

Question (2)

QN0037072

The class mark of the class interval 20–30 is:

(A) 20
(B) 24
(C) 25
(D) 30

Correct Answer: C

Explanation:

Class mark = (20 + 30)/2 = 25.

Link:

Report Error

Question (3)

QN0037073

In the direct method of finding the mean of grouped data, xᵢ represents:

(A) Frequency
(B) Class mark
(C) Cumulative frequency
(D) Class size

Correct Answer: B

Explanation:

xᵢ denotes the class mark of the ith class.

Link:

Report Error

Question (4)

QN0037074

If the frequencies are 4, 6, 8 and 2, the total frequency is:

(A) 18
(B) 19
(C) 20
(D) 21

Correct Answer: C

Explanation:

Σf = 4 + 6 + 8 + 2 = 20.

Link:

Report Error

Question (5)

QN0037075

Which measure of central tendency is represented by the value occurring most frequently?

(A) Mean
(B) Median
(C) Mode
(D) Range

Correct Answer: C

Explanation:

Mode is the value that occurs most frequently.

Link:

Report Error

Question (6)

QN0037076

The class containing the highest frequency is called the:

(A) Median class
(B) Modal class
(C) Mean class
(D) Central class

Correct Answer: B

Explanation:

The class having the highest frequency is the modal class.

Link:

Report Error

Question (7)

QN0037077

The median of a distribution divides the observations into:

(A) Three equal parts
(B) Four equal parts
(C) Two equal parts
(D) Five equal parts

Correct Answer: C

Explanation:

Median divides the distribution into two equal parts.

Link:

Report Error

Question (8)

QN0037078

Which cumulative frequency is used for locating the median class in a less-than cumulative frequency table?

(A) Greater than N
(B) Just greater than N/2
(C) Equal to N
(D) Less than N/2

Correct Answer: B

Explanation:

The median class is identified using the cumulative frequency just greater than N/2.

Link:

Report Error

Question (9)

QN0037079

If the total frequency is 60, the value used for locating the median class is:

(A) 15
(B) 20
(C) 30
(D) 60

Correct Answer: C

Explanation:

N/2 = 60/2 = 30.

Link:

Report Error

Question (10)

QN0037080

The empirical relation among mean, median and mode is:

(A) Mode = 3 Median − 2 Mean
(B) Mode = 3 Mean − 2 Median
(C) Mode = 2 Mean − 3 Median
(D) Mode = Mean + Median

Correct Answer: A

Explanation:

The empirical relation is Mode = 3 Median − 2 Mean.

Link:

Report Error

Question (1)

For the grouped data with class intervals 0–10, 10–20, 20–30 and frequencies 3, 5, 2 respectively, what is the mean?

Explanation:

Link:

Question (2)

The class mark of the class interval 20–30 is:

Explanation:

Link:

Question (3)

In the direct method of finding the mean of grouped data, xᵢ represents:

Explanation:

Link:

Question (4)

If the frequencies are 4, 6, 8 and 2, the total frequency is:

Explanation:

Link:

Question (5)

Which measure of central tendency is represented by the value occurring most frequently?

Explanation:

Link:

Question (6)

The class containing the highest frequency is called the:

Explanation:

Link:

Question (7)

The median of a distribution divides the observations into:

Explanation:

Link:

Question (8)

Which cumulative frequency is used for locating the median class in a less-than cumulative frequency table?

Explanation:

Link:

Question (9)

If the total frequency is 60, the value used for locating the median class is:

Explanation:

Link:

Question (10)

The empirical relation among mean, median and mode is:

Explanation:

Link:

Excel With Tutors

ExcelWithTutors

For Student

For Tutors

Learn

OUR POLICY