Scroll:statistics >> standard deviation >> saq (4239)

Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.


 

1)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-10) (10-20) (20-30) (30-40) (40-50)(50-60)
No. of days attending hospital 4 6 9 7 33


Answer:_______________




2)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-10) (10-20) (20-30) (30-40) (40-50)(50-60)
No. of days attending hospital 3 5 9 7 23


Answer:_______________




3)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-10) (10-20) (20-30) (30-40) (40-50)(50-60)
No. of days attending hospital 4 4 6 8 25


Answer:_______________




4)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 3 4 8 7 44


Answer:_______________




5)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 4 5 8 6 43


Answer:_______________




6)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 3 4 6 8 23


Answer:_______________




7)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 3 4 9 5 32


Answer:_______________




8)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 3 4 9 7 43


Answer:_______________




9)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-10) (10-20) (20-30) (30-40) (40-50)(50-60)
No. of days attending hospital 4 4 7 5 35


Answer:_______________




10)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-10) (10-20) (20-30) (30-40) (40-50)(50-60)
No. of days attending hospital 2 5 7 7 25


Answer:_______________




 

1)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-10) (10-20) (20-30) (30-40) (40-50)(50-60)
No. of days attending hospital 4 6 9 7 33

Answer: 27.50


SOLUTION 1 :

 

weights in kgf Mid value fx

0-10

10-20

20-30

30-40

40-50

50-60

4

6

9

7

3

3

 5

15

25

35

45

55

20

90

225

245

135 

165

 32   880

 

Mean  =∑ fx
∑ f

 

Mean
=
 		880
32

 

= 27.50

 



2)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-10) (10-20) (20-30) (30-40) (40-50)(50-60)
No. of days attending hospital 3 5 9 7 23

Answer: 28.10


SOLUTION 1 :

 

weights in kgf Mid value fx

0-10

10-20

20-30

30-40

40-50

50-60

3

5

9

7

2

3

 5

15

25

35

45

55

15

75

225

245

90 

165

 29   815

 

Mean  =∑ fx
∑ f

 

Mean
=
 		815
29

 

= 28.10

 



3)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-10) (10-20) (20-30) (30-40) (40-50)(50-60)
No. of days attending hospital 4 4 6 8 25

Answer: 30.17


SOLUTION 1 :

 

weights in kgf Mid value fx

0-10

10-20

20-30

30-40

40-50

50-60

4

4

6

8

2

5

 5

15

25

35

45

55

20

60

150

280

90 

275

 29   875

 

Mean  =∑ fx
∑ f

 

Mean
=
 		875
29

 

= 30.17

 



4)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 3 4 8 7 44

Answer: 61.33


SOLUTION 1 :

 

weights in kgf Mid value fx

0-20

20-40

40-60

60-80

80-100

100-120

3

4

8

7

4

4

 10

30

50

70

90

110

30

120

400

490

360 

440

 30   1840

 

Mean  =∑ fx
∑ f

 

Mean
=
 		1840
30

 

= 61.33

 



5)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 4 5 8 6 43

Answer: 56.67


SOLUTION 1 :

 

weights in kgf Mid value fx

0-20

20-40

40-60

60-80

80-100

100-120

4

5

8

6

4

3

 10

30

50

70

90

110

40

150

400

420

360 

330

 30   1700

 

Mean  =∑ fx
∑ f

 

Mean
=
 		1700
30

 

= 56.67

 



6)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 3 4 6 8 23

Answer: 58.46


SOLUTION 1 :

 

weights in kgf Mid value fx

0-20

20-40

40-60

60-80

80-100

100-120

3

4

6

8

2

3

 10

30

50

70

90

110

30

120

300

560

180 

330

 26   1520

 

Mean  =∑ fx
∑ f

 

Mean
=
 		1520
26

 

= 58.46

 



7)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 3 4 9 5 32

Answer: 55.38


SOLUTION 1 :

 

weights in kgf Mid value fx

0-20

20-40

40-60

60-80

80-100

100-120

3

4

9

5

3

2

 10

30

50

70

90

110

30

120

450

350

270 

220

 26   1440

 

Mean  =∑ fx
∑ f

 

Mean
=
 		1440
26

 

= 55.38

 



8)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 3 4 9 7 43

Answer: 59.33


SOLUTION 1 :

 

weights in kgf Mid value fx

0-20

20-40

40-60

60-80

80-100

100-120

3

4

9

7

4

3

 10

30

50

70

90

110

30

120

450

490

360 

330

 30   1780

 

Mean  =∑ fx
∑ f

 

Mean
=
 		1780
30

 

= 59.33

 



9)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-10) (10-20) (20-30) (30-40) (40-50)(50-60)
No. of days attending hospital 4 4 7 5 35

Answer: 30.00


SOLUTION 1 :

 

weights in kgf Mid value fx

0-10

10-20

20-30

30-40

40-50

50-60

4

4

7

5

3

5

 5

15

25

35

45

55

20

60

175

175

135 

275

 28   840

 

Mean  =∑ fx
∑ f

 

Mean
=
 		840
28

 

= 30.00

 



10)  

The data on number of patients attending a hospital in a month are given below. Find the average number of patients attending the hospital in a day.

No. of patients (0-10) (10-20) (20-30) (30-40) (40-50)(50-60)
No. of days attending hospital 2 5 7 7 25

Answer: 31.07


SOLUTION 1 :

 

weights in kgf Mid value fx

0-10

10-20

20-30

30-40

40-50

50-60

2

5

7

7

2

5

 5

15

25

35

45

55

10

75

175

245

90 

275

 28   870

 

Mean  =∑ fx
∑ f

 

Mean
=
 		870
28

 

= 31.07