Find the missing frequencies in the following frequency distribution whose mean is 50

X

10

30

50

70

90

Total

F

17

fi

32

F2

19

120

what is the formula of mean , median , mode ?

what is the correct formula for adjusted frequency because wile doing the examples on meritnation the formula used was:-

Adjusted frequency= frequency/class size*minimum class size

whereas in the video regarding the histogram where adjusted frequency was used the formula applied there was:-

Adjusted frequency= minimum class size/class size*frequency

what is class, class size, class interval and class marks????? plz plz plz answer fast......or else i will fail.......plz

In a frequency distribution, the mid-value of a class is 20 and the width of the class is 8.then what is the lower limit ?

If mean of 5 observations x , x+2 , x+4 , x+6 , x+8 is 11.

Find the median of first three observations.

Plz help,

Find the missing frequencies f1 and f2 in the following frequeny distribution, if it is know that the mean of the distribution is 1.46

xi 0 1 2 345 total

fi 46 fi f2 25 10 5200

The mean of first 8 observations is 18 and last 8 observations is 20 . If the mean of all 15 observations is 19 , find the 8 th observation?

The mean height of 10 students is 153 cm. It is discovered later on that while calculating, 151 was misread as 141 cm. Find the correct mean

the two consecutive class marks of a distribution are 52 and 57. find the class limits of two intervals

21. In the following groups of data, tell whether the mean or the median best describes the data:

(i) 6, 4, 2, 12, 2 (ii) 31, 28, 24, 9, 23 (iii) 45, 51, 47, 65, 36 (iv) 10, 20, 30, 100, 9

whats the difference between class interval, class size,class limit,class mark and also ranges,width and length of rectangle ?

Find the value of p, if the mean of the following distribution is 20

x: 15 17 19 20+p 23

f: 2 3 4 5p 6

note : the method should be of sigma fixi.

The mean weight of 8 numbers is 15, if each number is multiplied by 2, what will be the new mean

For a particular year following is the distribution of ages (in years) of primary school teachers in a district

Age (in years)

15-20

20-25

25-30

30-35

35-40

40-45

45-50

No. of teachers

6

4

1) 1) Write the lower limit of first class interval

2) 2) Determine the class limits of the fourth class interval

3) 3) Find the class mark of the class 45-50

4) Determine the class-size

Differentiate between class limits and true class limits.Give examples

Why is Mode, Mean, Median called as Measures of Central Tendency ?

what is the exact formula for ADJUSTED FREQUENCY??????????????

BECAUSE 2 VIDEOS OF THE SAME CHAPTER BUT OF OTHER LESSON SHOW DIFFERENT FORMULA SO WHICH ONE IS CORRECT.

1) class mark of a particular class is 6.5 and class size is 3 , then class interval is -

a) 5 - 8 b) 6.5 - 9.5 c) 3.5 - 6.5 d) none of these

2) the mean of 100 observations is 50 . if the observation 50 is replaced by 150 , what will be the resulting mean?

for calculating mean we should need xf and for calculating median we need cf is that right.

Find the missing frequencies in the following frequency distribution whose mean is 50

X

10

30

50

70

90

Total

F

17

fi

32

F2

19

120

what is the formula of mean , median , mode ?

what is the correct formula for adjusted frequency because wile doing the examples on meritnation the formula used was:-

Adjusted frequency= frequency/class size*minimum class size

whereas in the video regarding the histogram where adjusted frequency was used the formula applied there was:-

Adjusted frequency= minimum class size/class size*frequency

what is class, class size, class interval and class marks????? plz plz plz answer fast......or else i will fail.......plz

In a frequency distribution, the mid-value of a class is 20 and the width of the class is 8.then what is the lower limit ?

If mean of 5 observations x , x+2 , x+4 , x+6 , x+8 is 11.

Find the median of first three observations.

18,20,25,26,30,x,37,38,39,48

if the median of the data is 35, find x. in the above data if 48 is changed to 28 what will the new median be

Plz help,

Find the missing frequencies f1 and f2 in the following frequeny distribution, if it is know that the mean of the distribution is 1.46

xi 0 1 2 345 total

fi 46 fi f2 25 10 5200

The mean of first 8 observations is 18 and last 8 observations is 20 . If the mean of all 15 observations is 19 , find the 8 th observation?

The mean height of 10 students is 153 cm. It is discovered later on that while calculating, 151 was misread as 141 cm. Find the correct mean

the two consecutive class marks of a distribution are 52 and 57. find the class limits of two intervals

21. In the following groups of data, tell whether the mean or the median best describes the data:

(i) 6, 4, 2, 12, 2 (ii) 31, 28, 24, 9, 23 (iii) 45, 51, 47, 65, 36 (iv) 10, 20, 30, 100, 9

whats the difference between class interval, class size,class limit,class mark and also ranges,width and length of rectangle ?

Find the value of p, if the mean of the following distribution is 20

x: 15 17 19 20+p 23

f: 2 3 4 5p 6

note : the method should be of sigma fixi.

The mean weight of 8 numbers is 15, if each number is multiplied by 2, what will be the new mean

how too find class marks ??explain with an example ??

wat is histogram , expalin with an example !?expain who to find scale with example !???For a particular year following is the distribution of ages (in years) of primary school teachers in a district

Age (in years)

15-20

20-25

25-30

30-35

35-40

40-45

45-50

No. of teachers

10

30

50

50

30

6

4

1) 1) Write the lower limit of first class interval

2) 2) Determine the class limits of the fourth class interval

3) 3) Find the class mark of the class 45-50

4) Determine the class-size

Differentiate between class limits and true class limits.Give examples

Why is Mode, Mean, Median called as Measures of Central Tendency ?

what is the exact formula for ADJUSTED FREQUENCY??????????????

BECAUSE 2 VIDEOS OF THE SAME CHAPTER BUT OF OTHER LESSON SHOW DIFFERENT FORMULA SO WHICH ONE IS CORRECT.

1) class mark of a particular class is 6.5 and class size is 3 , then class interval is -

a) 5 - 8 b) 6.5 - 9.5 c) 3.5 - 6.5 d) none of these

2) the mean of 100 observations is 50 . if the observation 50 is replaced by 150 , what will be the resulting mean?

for calculating mean we should need xf and for calculating median we need cf is that right.