Home
Class 9
MATHS
A company manufactures car batteries of ...

A company manufactures car batteries of particular type. The life (in years) of 40 batteries was recorded as follows:

Construct a grouped frequency distribution table with exclusive classes for this data, using class intervals of size 0.5 starting from the interval 2-2.5.

Text Solution

Verified by Experts

The correct Answer is:
`(##NCERT_TAM_MAT_IX_C09_E01_009_A01##)`
Promotional Banner

Topper's Solved these Questions

  • STATISTICS

    NCERT TAMIL|Exercise EXERCISE 9.2|11 Videos

  • STATISTICS

    NCERT TAMIL|Exercise TRY THESE|5 Videos

  • STATISTICS

    NCERT TAMIL|Exercise THINK AND DISCUSS|2 Videos

  • SET LANGUAGE

    NCERT TAMIL|Exercise Exercise 1.7 (Multiple Choice Questions)|20 Videos

  • SURFACE AREAS AND VOLUMES

    NCERT TAMIL|Exercise EXERCISE 10.4|12 Videos

Similar Questions

Explore conceptually related problems

The rear side of a truck is open and a box of 40 kg mass is placed 5 m away from the open end as shown in Fig. The coefficient of friction between the box and the surface below it is 0.15. On a straight road, the truck starts from rest and accelerates with 2 m s^(-2) . At what distance from the starting point does the box fall off the truck? (Ignore the size of the box).

Answer the following questions . a. The earth's magnetic field varies from point is space. Does it also change with time ? It so , on what time scate does it change appreciably ? b. The earth's core is known to contain iron. Yet geologists do not regard this as a source of the earth's magnetism why ? c. The charged currents in the outer conducting regions of the earth's core are thought to be responsible for earth's magnetism . What might be the ' battery ' (i.e., the source of energy) to sustain these currents ? d. The earth may have even reversed the direction of its field several times during its history of 4 to 5 billion years. How can geologists know about the earth's field in such distant past ? e. The earth's field departs from its dipole substantially at large distances (greater than about 30,000 km) what agencies may be responsible for this distortion ? f. Interstellar space has an extremely weak magnetic field of the order of 10^(-12) T, Can such a weak field be of any significant consequence ? Explain. [Note : Exercise 2 is meant mainly to arouse your curiosity . Answers to some question above are tentative or unknown . Brief answers wherever possible are given at the end . For details , you should consult a good text on geomagnetism.]

A man walks on a straight road from his home to a market 2.5 km away with speed of 5 \frac { k m } { h \r } . Finding the market closed, he instantly turns and walks back home with a speed of 7.5 \frac { k m } { h \r } . The average speed of the man over the interval of time 0 to 40 min is equal to

Lightning is very good example of natural current. In typical lightning, thereis 10^9 J energy transfer across the potential difference of 5 xx 10^7 V during a time interval of 0.2 s. Using this information, estimate the following quantities total amount of charge transferred between cloud and groung

From the employees of a company, 5 person are selected to repreent them in the managing committee of the company. Particular of five persons are as follows: {:("S.No.","Name ","sex","age in years"),(1.,"harish ",M,30),(2. , "Rohon",M,33),(3.,"sheetal",F,46),(4.,"Alis",F,28),(5. ,"Salim",M,41):} A person is selected at random from this group to act as a spokespersons. What is the probability that the spokespersons will be either male or over 35 years?