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Anjali asked a question
Subject: Maths, asked on on 21/5/19
Does correlation always signify cause and effect relationship between the two variables?
Sima Singh Roy asked a question
Subject: Maths, asked on on 25/11/17
In the adjoining figure. ABCD is a parallelogram. Find x,y, z and w.
Hetraj Chauhan asked a question
Subject: Maths, asked on on 23/8/21
The following are the monthly rents (in ) of 30 shops : 42 49 37 82 37 75 62 54 79 84 75 63 44 74 44 36 69 54 48 74 39 48 45 61 71 47 38 80 51 31. Using the class intervals of equal width in which one class interval being 40 – 50 (excluding 50), construct a frequency table for the above data.
Hetraj Chauhan asked a question
Subject: Maths, asked on on 23/8/21
Ayushree sat for six tests and Ananya sar for seven tests. Their percentage scores were : Ayushree : 68 75 70 45 57 77 Ananya : 52 87 64 53 74 81 86 Who has the higher mean score ?
Khushboo asked a question
Subject: Maths, asked on on 9/3/18
Answer the icse board question(2018)."DO NOT SEND ANY LINKS". CHAPTER :?STATISTICS. (b) Use Graph paper for this. question. A survey regarding height (in cm) of 60 boys belonging to Class 10 of a school was conducted. The following data was recorded: Height 135 -140 140 -145 145—150 150—155 155 — 160 160 — 165 165 — 170 No. of boys 4 8 20 14 7 6 1 Taking 2 cm = height of 10 cm along one axis and 2 cm = 10 boys along the other axis draw an ogive of the above distribution. Use the graph to estimate the following: (i) the median (ii) lower Quartile (iii) if above 158 cm is considered as the tall boys of the class. Find the number of boys in the class who are tall.
Raju asked a question
Subject: Maths, asked on on 25/12/17
Q.Prepare a blank table to show the exports of three companies A,B,C, to the five country U.K., U.S.A., France, Germany in each of the years 1993-96.
[Hint: The exports of three companies to five countries in the year 1993-96]

 
Country    1993 1994 1995 1996
   
A     B      C  
 A     B      C  
 A     B      C  
 A     B      C  
1. U.K.
2. U.S. A.
3 France
4. Germany
5 China		        
         

          
Ria Sharma1420 asked a question
Subject: Maths, asked on on 13/10/17
Answer this 6th question....very urgent...please don't send links.:

6. Find the median weight for the following data:
 
Weight (in kg) 45 46 48 50 52 54 55
Number of boys 8 5 6 9 7 4 2
Priyanshi asked a question
Subject: Maths, asked on on 5/5/19
The following observation have been arranged in ascending order .If the median of the data is 47.5, find the value of x. 17, 21 ,23, 29 ,39, 40 ,x ,50 51,54 ,59,67, 91,93
Soumyajeet Dey asked a question
Subject: Maths, asked on on 18/6/18
In a series of tests A appeared for 8 tests but while checking his files he could only find 7 of the 8 tests. If the marks of the tests are 29,26,18,20,27,24,29 .Determine how he scored in the eighth test.
Hetraj Chauhan asked a question
Subject: Maths, asked on on 23/8/21
Thirty 16 year old boys were tested to find their pulse rate. The following figures Were obtained for the number of beats per minute. Using the class intervals 51-55, 56-60, etc, of equal width, prepare a frequency table. 55 72 70 66 74 70 74 53 57 62 71 58 68 75 79 68 63 59 54 51 61 66 78 73 59 52 66 60 72 56.
Harsh asked a question
Subject: Maths, asked on on 11/1/19
What upper class limit correspond to lower class limits of 3,6,9,12,15
Sachett Singh asked a question
Subject: Maths, asked on on 16/5/18
Q).The following table gives the life time in days of 100 electricity tubes of a certain maker.


Find the mean lifetime of electricity tubes.
Priyanshi asked a question
Subject: Maths, asked on on 5/5/19
1) find the mean of the first six prime numbers
2)find the mean of the first seven odd prime numbers
Anushka Dhar asked a question
Subject: Maths, asked on on 12/11/17
these 3 sums. no 7,8,9

​Q7. The mean of 5 numbers is 20. If one number is excluded, mean of the remaining numbers becomes 23. Find the excluded number.

Q8. The mean of 25 observations is 27. If one observation is included, the mean still remains 27. Find the included observation.

Q9. The mean of 5 observations is 15. If the mean of first three observations is 14 and that of the last three is 17, find the third observation.
Ayush asked a question
Subject: Maths, asked on on 24/6/18
In a single throw of two dice what is the probability of getting
A sum exceeding 12
A doublet
Sum of two numbers as an even number
Priyanshi asked a question
Subject: Maths, asked on on 5/5/19
The following observation have been arranged in ascending order .If the median of the data is 13, find the value of x: 3,6,7, 10 x, x + 4 ,19, 20 ,25 ,28
Afreen ..... asked a question
Subject: Maths, asked on on 30/8/20
koi statistics ka conclusion dega
Sowmi asked a question
Subject: Maths, asked on on 22/11/18
Answer this question
Pranjal Singh asked a question
Subject: Maths, asked on on 28/11/19
The mean of 15 observation is 32. Find the resulting mean, if each observation is:
(i) increased by 3
(ii) decreased by 7
(iii) multiplied by 2
Khushboo asked a question
Subject: Maths, asked on on 9/3/18
PLEASE READ THE QUESTION PROPERLY : I have said many times that "DO NOT SEND SIMILAR QUERIES BECAUSE LINK COULD NOT BE OPENED DUE TO SOME TECHNICAL PROBLEM".So Expert Rishabh kindly do not send link.
-Repeating the question:-
"Answer the ICSE board question(2018).
CHAPTER :STATISTICS
(b) If the mean of he following distribution is 24 , find the value of 'a'

Marks0-1010-2020-3030-4040-50Number of Students7a8105
 
Udayan asked a question
Subject: Maths, asked on on 12/2/18
Q.c. Find the mean of the following data by step deviation method:
Khushboo asked a question
Subject: Maths, asked on on 9/3/18
Q. If the mean of the following distribution is 24, find the value of 'a' .

 
Marks 0-10 10-20 20-30 30-40 40-50
Numbers of students  7   a   8   10  5
Arsh Agarwal asked a question
Subject: Maths, asked on on 6/10/17
HOW TO DRAW A FREQUENCY DISTRIBUTION TABLE USING HISTOGRAM
Saloni Ambre asked a question
Subject: Maths, asked on on 26/1/18
Solve this:

Q(a). The ogive of the distribution of marks of 45 students is given below. Find mean by using step deviation method.
                      
    (b) The daily expenditure of 100 families are as follows :
  Expenditure in (Rs)   140-160   160-180  180-200  200-220  220-240
      No. of families         5       25       f1       f2       f3
 
Daily mean expenditure per family is Rs. 188. Find f1 and f2.

    (c) Calculate mean, median and mode of the following distribution :
     No. of wickets     2    3     4       5       6      7
     No. of matches     2    5     7       6       8      3
Sananya Das asked a question
Subject: Maths, asked on on 27/9/17
If the mean of observations x,x+2,x+4,x+6,x+8 is11,find:
1) the value of x;
2) the mean of first three observations.
Evangeline asked a question
Subject: Maths, asked on on 2/12/18
Please help me sum no. 4
Isha Gupta asked a question
Subject: Maths, asked on on 15/11/18
Slove this question.
Shivam Sharma asked a question
Subject: Maths, asked on on 18/12/18
The Mean weight of student of A class is 46 kg the mean weight of boy is 50 kg and that of girls is 40kg find the ratio of the number of boys to the number of girls
Revathi asked a question
Subject: Maths, asked on on 11/8/19
Fill in the blank 3221, 132211 ,11132221, ___________
Khushboo asked a question
Subject: Maths, asked on on 9/3/18
Q. If the mean of the following distribution is 24, find the value of 'a'.

 
Marks 0-10 10-20 20-30 30-40 40-50
Number of students 7 a 8 10 5
Pranjal Singh asked a question
Subject: Maths, asked on on 23/1/20
Find the mean of the following data :
30, 32, 24, 34, 26, 28, 30, 35, 33, 25

(i) Show that the sum of the derivations of all the given observations from the mean is zero.

(ii) Find the median if the given data.
Aum Choudhary asked a question
Subject: Maths, asked on on 8/12/20
Conduct a survey of students and represent it graphically 1) height and weight 2) no of members in family and pocket money. assume the value
Arushi Yadav asked a question
Subject: Maths, asked on on 9/6/19
Plss tell how to do it..

Q. Prove graphically the line whose equations are forms as right angle triangle. Find the vertices of the triangle and its area. Also find the perimeter of the triangle.
x+5=0x-6=0x-y=0 - equations
Priyanshi asked a question
Subject: Maths, asked on on 5/5/19
mean of 9 observation was found to be 35. Later on, it was detected that an observation 81 was misread as 18 .Find the correct mean of the observation
Arushi Yadav asked a question
Subject: Maths, asked on on 7/6/19
Plss tell how to do it..

Prove graphically the line whose equations are form a right angle ∆. ​​​​​Find x + 5 = 0 the vertices of the ∆ y − 6 = 0 & its area. Also find x − y = 0 the perimeter of the ∆.
Maxwell asked a question
Subject: Maths, asked on on 27/4/21
Three peolple Odawa, mliwa and Amina contributed money to purchase a flour mill.Odawa contributed1/3of the total amount, Mliwa contributed 3/8 of the remaining amount and amina contributed th rest of the money.The difference in contribution between Mliwa and Amina was shs 40000.calculate the price of the flour
Evangeline asked a question
Subject: Maths, asked on on 1/12/18
Pleasesomeone help me!!
Pinky Shrivas asked a question
Subject: Maths, asked on on 3/11/18
Please ans this please...
Radha asked a question
Subject: Maths, asked on on 22/5/18
A bag contains 4 blue , 5 red , and 7 green balls .If 4 balls are drawn one by one with replacement , what is the probablity that all are blue??
Anindita Sarkar asked a question
Subject: Maths, asked on on 15/1/20
Please solve question no.9.
Please solve it on a graph paper and also show the frequency table.
Evangeline asked a question
Subject: Maths, asked on on 1/12/18
Please help me!! Its urget sum no. 3 but please dont share links
Evangeline asked a question
Subject: Maths, asked on on 1/12/18
An expert please help please !! Sum no. 3
Niharika asked a question
Subject: Maths, asked on on 8/1/20
Dear sir/ ma'Am , pls help me in this question
Kritika.singh asked a question
Subject: Maths, asked on on 10/3/19
the mean of 18,24,15,2x+1,12 is 21.find the value of x and hence find the median of the data
 
Manasvi Gupta asked a question
Subject: Maths, asked on on 2/8/18
Solution of question 2 (v)
Ankit Singla asked a question
Subject: Maths, asked on on 4/2/18
Q. The marks of 200 students in a test were recoded a follows :
 
Marks % 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89
No of students 7 11 20 46 57 37 15 7

Draw a cumulative frequency table.
Pranjal Singh asked a question
Subject: Maths, asked on on 30/11/19
The mean of 5 numbers is 18. If one number is excluded, the mean of remaining numbers becomes 16. Find the excluded number.
Sanjani asked a question
Subject: Maths, asked on on 25/6/18
one card is drawn at random ​from a wellshuffled deckof 52 cards,find the probability that the card drawn is a king,a spade,a red queen,a black 8
Shivkant Kumar Gupta asked a question
Subject: Maths, asked on on 12/2/19
Conduct a survey of a group of students and represent it graphically height weight number of family members pocket money
Ayush asked a question
Subject: Maths, asked on on 24/6/18
A card is drawn at random from a well shuffled deck of playing cards find the probability that the card drawn is
An ace
The 10 hearts
A black card
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