Exercise 14.3 Archives - Noon Academy

For each of the following compound statements first identify the connecting words and then break it into component statements. (i) All rational numbers are real and all real numbers are not complex. (ii) Square of an integer is positive or negative.

CBSE, Class 11, Class 11, Exercise 14.3, Mathematical Reasoning, NCERT

(I) In this sentence 'and' is the associating word The part proclamations are as per the following (a) All normal numbers are genuine (b) All genuine numbers are not perplexing (ii) In this...

The distributions of below give a weight of 30 students of a class. Find the median weight of a student.

CBSE, Class 10, Exercise 14.3, Maths, NCERT, Statistics

Weight(in kg)40-4545-5050-5555-6060-6565-7070-75Number of students2386632 Solution: Class Interval Frequency ...

In this 100 surnames were randomly picked up from a local telephone directory and the frequency distribution of the number of letters in English alphabets in the surnames was obtained as follows:

CBSE, Class 10, Exercise 14.3, Maths, NCERT, Statistics

Number of letters1-44-77-1010-1313-1616-19Number of surnames630401644 Determine the number of median letters in the surnames. Find the number of mean letters in the surnames and also, find the size...

The following table gives the distribution of a life time of 400 neon lamps.

CBSE, Class 10, Exercise 14.3, Maths, NCERT, Statistics

Lifetime (in hours)Number of lamps1500-2000142000-2500562500-3000603000-3500863500-4000744000-4500624500-500048 Find the median lifetime of a lamp. Solution: Class...

The lengths of 40 leaves in a plant are measured correctly to the nearest millimeter, and the data obtained is represented as in the following table:

CBSE, Class 10, Exercise 14.3, Maths, NCERT, Statistics

Length (in mm)Number of leaves118-1263127-1355136-1449145-15312154-1625163-1714172-1802 Find the median length of leaves. solution: Since the information are not ceaseless diminish 0.5 in as far as...

The Life insurance agent found the following data for the distribution of ages of 100 policy holders. Calculate the median age, if policies are given only to the persons whose age is 18 years onwards but less than the 60 years.

CBSE, Class 10, Exercise 14.3, Maths, NCERT, Statistics

Age (in years)Number of policy holderBelow 202Below 256Below 3024Below 3545Below 4078Below 4589Below 5092Below 5598Below 60100 Solution: Class interval ...

2. If the median of a distribution given below is 28.5 then, find the value of x & y.

CBSE, Class 10, Exercise 14.3, Maths, NCERT, Statistics

Class IntervalFrequency0-10510-20x20-302030-401540-50y50-605Total60 Arrangement: Given information, n = 60 Middle of the given information = 28.5 Where, n/2 = 30 Middle class is 20 – 30 with an...

The following frequency distribution gives the monthly consumption of an electricity of 68 consumers in a locality. Find the median, mean and mode of the data and compare them.

CBSE, Class 10, Exercise 14.2, Exercise 14.3, Maths, NCERT, Statistics

Monthly consumption(in units)No. of customers65-85485-1055105-12513125-14520145-16514165-1858185-2054 Solution: Track down the aggregate recurrence of the given information as follows: Class...

For each of the following compound statements first identify the connecting words and then break it into component statements. (i) All rational numbers are real and all real numbers are not complex. (ii) Square of an integer is positive or negative.

The distributions of below give a weight of 30 students of a class. Find the median weight of a student.

In this 100 surnames were randomly picked up from a local telephone directory and the frequency distribution of the number of letters in English alphabets in the surnames was obtained as follows:

The following table gives the distribution of a life time of 400 neon lamps.

The lengths of 40 leaves in a plant are measured correctly to the nearest millimeter, and the data obtained is represented as in the following table:

The Life insurance agent found the following data for the distribution of ages of 100 policy holders. Calculate the median age, if policies are given only to the persons whose age is 18 years onwards but less than the 60 years.

2. If the median of a distribution given below is 28.5 then, find the value of x & y.

The following frequency distribution gives the monthly consumption of an electricity of 68 consumers in a locality. Find the median, mean and mode of the data and compare them.

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