Subject: Maths, asked on 17/12/17

## 7.  The mean of the following distribution is 50. x f 10 30 50 70 90   17 5a + 3 32 7a - 11 19   Find the value of a hence the frequencies of 30 and 70.

Subject: Maths, asked on 9/12/17

## Plz answer 32,33and 34th queztionas fast as possible ​Q32. Find missing frequencies if mean = 1.46 & sum of frequencies  : 200                x 0  1 2  3   4    5  f  46  x  y  25  10  5 Q33. Find missing frequencies if Mean = 50. $\sum _{}$ f i = 120     C.I.  0-20  20-40  40-60  60-80 80-100   f i   17   28    x    24     y Q34. Find missing frequencies if mean = 54 &$\sum _{}$f =50     CI 0- 20  20-40 40-60  60-80 80-100   fi  7    x    10   Y    13

Subject: Maths, asked on 8/12/17

## Please slove question 28 Q.28. Draw the frequency polygon without constructing the histogram of the following observations.

Subject: Maths, asked on 8/12/17

## Q.22. Three coins are tossed simultaneously 60 times, with the following frequencies 3 heads : 10 times, 2 heads : 5 times, 1 head : 18 times, no head : 27 times. Find P(getting 3 heads) + P(getting no head).

Subject: Maths, asked on 8/12/17

## Please slove question 19 Q.19. Following table gives the distribution of time taken to solve a problem by 40 students. Draw a histogram to represent the above data.

Subject: Maths, asked on 8/12/17

## Please solve question 3 Q.3. If the class mark and class size of a class are 6 and 7 respectively, then find the upper limit of the class.

Subject: Maths, asked on 3/12/17

## find the missing frequency if mean is 20.6 x=10 15 20 25 35 f= 3 10 9 7 5

Subject: Maths, asked on 1/12/17

## The mean of 20 observations is 17. If 25 is added to the sum of observations, find the new mean.

Subject: Maths, asked on 19/11/17

## Find the median when x is 7 , 30 , 50 , 70 , 89 and f is 7, 8 , 10 , 15 , 10 here f is frequency and x is observation

Subject: Maths, asked on 14/11/17

## When we use tally marks in the questions related to statistics?In some questions tally marks are used and in other some questions,tally marks are not used.Why?

Subject: Maths, asked on 21/10/17

## What is the formula to find median of Even number of Observations?

Subject: Maths, asked on 21/10/17

## The average of 2,7,6 and x is 5 and the average of 18,16,x and y is 10. Find the value of y and x.

Subject: Maths, asked on 8/10/17

## 14th one please   14. Consider a small unit of factory where there are 5 employees : a supervisor and four labourers. The labours draw a salary of Rs.5000 per month each while the supervisor gets Rs.15,000 per month. Calculate the mean, median and mode of the salaries of this unit of the factory: 5000, 5000, 5000, 5000, 15000.

Subject: Maths, asked on 2/10/17

## three houses K,B and C are in a line. there are five houses between K and B and eight houses between B and C. if there be three houses left of C and 21 houses right of K, what could be the minimum number of houses in the line. plz answer!! fast!!

Subject: Maths, asked on 6/9/17

## Please answer. Q.  The pass percentage in different subjects and the no.of  students who appeared in the subjects are given below : Find the arithmetic mean of pass percentage and the weighted arithmetic mean.

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