Description

This mock test of Important Questions: Statistics for Class 10 helps you for every Class 10 entrance exam.
This contains 10 Multiple Choice Questions for Class 10 Important Questions: Statistics (mcq) to study with solutions a complete question bank.
The solved questions answers in this Important Questions: Statistics quiz give you a good mix of easy questions and tough questions. Class 10
students definitely take this Important Questions: Statistics exercise for a better result in the exam. You can find other Important Questions: Statistics extra questions,
long questions & short questions for Class 10 on EduRev as well by searching above.

QUESTION: 1

While computing mean of a grouped data, we assume that the frequencies are

Solution:

QUESTION: 2

d_{i} is the deviation of x_{i} from assumed mean a.

Solution:

QUESTION: 3

Construction of a cumulative frequency table is useful in determining the

Solution:

**The correct answer is b**

** A cumulative frequency table helps to determine the median of the series.**

QUESTION: 4

Mean of 100 items is 49. It was discovered that three items which should have been 60, 70, 80 were wrongly read as 40, 20, 50 respectively. The correct mean is

Solution:

Sum of 100 observations = 100 x 49 = 4900

Correct sum = 4900 - [40 + 20 + 50] + [60 + 70 + 80] = 5000

∴ Correct mean = 5000/100 = 50

QUESTION: 5

In the formula, Mode

Solution:

QUESTION: 6

Choose the correct answer from the given four options : In the formula

for finding the mean of grouped data are deviation from a of

Solution:

QUESTION: 7

For the following distribution:

The sum of upper limits of the median class and model class is

Solution:

QUESTION: 8

While computing mean of grouped data, we assume that the frequencies are

Solution:

QUESTION: 9

Consider the following frequency distribution of the height of 60 students of a class:

The sum of the lower limit of the modal class and upper limit of the median class is

Solution:

QUESTION: 10

For the following distribution:

the modal class is

Solution:

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