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CBSE Class 9 Answered

The average of 20 numbers is 0.of them,at most how many of them may be greater than zero?
Asked by pugalatha | 23 Jan, 2015, 10:40: PM
answered-by-expert Expert Answer
Considering all the numbers to be equal, the maximum number of positive numbers should be 10.
Answered by Prasenjit Paul | 24 Jan, 2015, 07:14: PM

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CBSE 9 - Maths
Q-16 Make a frequency polygon for given frequency table (5) - Class Interval Frequency Section A Section B 3 0 - 5 2 5 - 10 3 5 10 - 15 4 2 15 - 20 1 3 20 - 25 5 4 25 - 30 3 2
Asked by poortivansh2009 | 26 Dec, 2023, 01:19: PM
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CBSE 9 - Maths
Observations of a raw data are 5,28,15,10,24. Add four more numbers so that mean and median of the data remain the same, but mode increases by 1.
Asked by 16presa1186 | 09 Jan, 2023, 07:55: PM
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CBSE 9 - Maths
what is class mark?
Asked by anaikapandeymarmoris | 20 Dec, 2022, 06:43: PM
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CBSE 9 - Maths
Following are the marks obtained by 20 students in an class 9 examination , 12,8,18,16,1,6,8,5,23,12,16,23,10,2,12,20,7,9,0,5 present the data in the form of a frequency distribution using (the class size such as 0-5 ,5-10 etc , how many students obtained marks below 15
Asked by deadpool.samarth | 01 Sep, 2021, 09:27: AM
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CBSE 9 - Maths
The most occurring frequency observation from data is called........ 
Asked by Princevekariaya | 04 Apr, 2021, 01:57: PM
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CBSE 9 - Maths
The following observations have been arranged in ascending order. If the median of the data is 63, find the value of x. 29, 32, 48, 50, x, x + 2, 72, 78, 84, 95
Asked by swatipuspapatel | 12 Jan, 2021, 07:21: PM
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CBSE 9 - Maths
Draw a distance time graph and give nature Distance in meter 7,10,17,22,26,37, Time in seconds 2,4,6,8,10,12,14  
Asked by deshmukhsiddhesh39 | 03 Jul, 2020, 03:37: PM
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CBSE 9 - Maths
find a new mean if 2,4 is added and 5 is subtracted from data of mean 20 and terms 100
Asked by tapiawalabipin | 09 Jan, 2020, 08:43: AM
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CBSE 9 - Maths
I am unable to understand the symbols please help me to understand the symbols in the solution any give me answer in detail by writing in language not a symbol use.
question image
Asked by Anubhavjain599 | 15 Dec, 2019, 11:54: AM
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CBSE 9 - Maths
how to find mean , median , mode
Asked by anish.ravesh | 07 Jul, 2019, 12:14: PM
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