MENTAL MATH>Chapter 4 - Data Handling>Worksheet - 20>Q 3

MEDIUM

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IMPORTANT

Earn 100

The median of the first $99$ natural numbers is

50% studentsanswered this correctly

Important Questions on Data Handling

EASY

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IMPORTANT

MENTAL MATH>Chapter 4 - Data Handling>Worksheet - 20>Q 4

The mode of the data

3.6, 3.4, 3.6, 3.1, 3.2, 3.4, 3.6, 3.5

is

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IMPORTANT

MENTAL MATH>Chapter 4 - Data Handling>Worksheet - 20>Q 5

A student was asked to find the arithmetic mean of the following

12

numbers:

3, 11, 7, 9, 15, 13, 8, 19, 17, 21, 14

and

x

. The mean was

12

. The value of

x

is

HARD

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IMPORTANT

MENTAL MATH>Chapter 4 - Data Handling>Worksheet - 20>Q 6

The mean age of

25

students in a class is

12

. If the teacher's age is included, the mean age increases by

1

. The teacher's age (in years) is

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IMPORTANT

MENTAL MATH>Chapter 4 - Data Handling>Worksheet - 20>Q 7

The mean of

10

observations is

3.5

. If two observations namely

3.5

and

2.5

are deleted, the new mean will be

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IMPORTANT

MENTAL MATH>Chapter 4 - Data Handling>Worksheet - 20>Q 8

The probability of rolling a number greater than

4

with a die is