Ask questions which are clear, concise and easy to understand.
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Yogita Ingle 5 years, 2 months ago
Purpose of internet security is to create rules and actions to protect against attacks over the internet.
* The best internet security practice are :-
_ USE SECURE PASSWORDS.
_ DON'T REUSE PASSWORDS.
_ SECURE YOUR WIFI.
Posted by Deepak Joshi 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
आपा खो
shayad usne apna आपा खो diya
If you keep your head, you remain calm in a difficult situation. If you lose your head, you panic or do not remain calm.
If you lose your temper, you become very angry.
If someone throws a fit or tantrum, they are suddenly very angry and start to behave in an uncontrolled way.
Posted by Anushka Kumari 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
For middle classes in cities, the call of Swaraj led to boycott of government institution. In town the movement was relatively peaceful. everyone students, headmasters and lawyers left their jobs. The council elections were boycotted in most provinces. foreign products and clothes were boycotted and burnt, so the movement slowed down gradually due to lack of alternatives.
For the peasants and tribals, Swaraj meant not only freedom from British rule, but also at the hands of landlords. So they organized themselves and demanded reduction of revenue and abolition of beggar. in the countryside there were the houses being attacked. So the tribals started guerilla resistance movements they had been deprived of access to forest and its resources.
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Yogita Ingle 5 years, 2 months ago
Lencho had faith in God. He had been instructed that God’s eyes see everything, even what is deep in one’s conscience. Therefore, he wrote a letter to God expressing his need for a hundred pesos so that he could sow his field again and live until the crop grew again.
Posted by Kritika Pathak 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
Q : The length of the hypotenuse of a right triangle exceeds the length of its base by 2 cm and exceeds twice the length of altitude by 1 cm. Find the length of each side of the triangle.
S o l u t i o n:
Let altitude of triangle be x.
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Gaurav Seth 5 years, 1 month ago
TEP DEVIATION METHOD:
Step deviation method is used in the cases where the deviation from the assumed mean 'A' are multiples of a common number. If the values of ‘di’ for each class is a multiple of ‘h’ the calculation become simpler by taking ui= di/h = (xi - A )/h
Here, h is the class size of each class interval.
★★ Find the class marks of class interval. These class marks would serve as the representative of whole class and are represented by xi.
★★ Class marks (xi) = ( lower limit + upper limit) /2
★★ We may take Assumed mean 'A’ to be that xi which lies in the middle of x1 ,x2 …..xn
MEAN = A + h ×(Σfiui /Σfi) , where ui = (xi - A )/h
[‘Σ’ Sigma means ‘summation’ ]
FREQUENCY DISTRIBUTION TABLE
★★ Here,the frequency table is given in inclusive form. So we first change it into exclusive form by subtracting and adding h/2 to the lower and upper limits respectively of each class ,where ‘h’ denotes the difference of lower limit of a class and upper limit of the previous class.
Here, h/2 = ½ = 0.5
From the table : Σfiui = 25 , Σfi = 400
Let the assumed mean, A = 57, h = 3
MEAN = A + h ×(Σfiui /Σfi)
Mean = 57 + 3 (25/400)
= 57 + 3 (1/16)
= 57 + 3/16
= 57 + 0.187
= 57.187
Mean = 57.19 (approximate)
Hence, the Mean number of mangoes kept in a packing box is 57.19 (approximate)
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Sabari Krishna 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
This is one of the chemical tests for carbon dioxide. That is called as lime water test. When lime (CaO) reacts with water it forms slaked lime . When the carbon dioxide is passing through the slaked lime solution, it turns milky when the calcium carbonate and calcium bicarbonate is formed.
The chemical reaction can be expressed as:
When calcium hydroxide is treated with carbon dioxide, the calcium carbonate and water is formed, then carbon dioxide is released.
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Gaurav Seth 5 years, 2 months ago
ACQUIRED TRAIT: INHERITED TRAIT
1.Traits which are developed by the practice 1.the trait are obtain from the parents
2.they make changes in non reproductive cell 2.they make changes in reproductive cells
3.the do not get passed on to next genration 3.they can pass down to next generation
4.this do not bring any alteration in the gene 4.this bring alteration in the gene
5.EXAMPLE:tail of a rat,lion,etc 5.EXAMPLE:hair colour ,skin colour ,etc
Posted by Aman Aryan 5 years, 2 months ago
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Gaurav Seth 5 years ago
CPI(M):
(i)It supports socialism, secularism and democracy and opposes imperialism and communalism.
(ii)Accepts democratic elections as a useful and helpful means for securing the objective of socio- economic justice in India.
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Gaurav Seth 5 years, 2 months ago
Both assumed mean method and step deviation method are ways to find mean without any complications...
step deviation method is just an elaboration of assumed mean.
1. Assumed Mean method:
Step 1- Tabulate the continuous class intervals and frequency alongwith class marks.
Class Mark = Upper Limit + Lower Limit
2
Step 2- Assume any of the class marks to be your mean .
Step 3- Take out the differences of the assumed mean and class marks.{ xi - a = di}
Example if the class marks are 20, 30,40,50,60,70 and so on......and if the a =50 then,di is -30,-20,-10,0,10,20and so on.....
Step 4: Multiply fi and di .
Step5:
d = sum of fidi
sum of fi
Step 6: Mean = a + d
0Thank You