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 (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 2 6 7 7 44


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 (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 3 6 6 8 42


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 2 5 7 8 24


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 2 6 8 6 35


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 (0-10) (10-20) (20-30) (30-40) (40-50)(50-60)
No. of days attending hospital 4 5 6 6 45


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 (0-10) (10-20) (20-30) (30-40) (40-50)(50-60)
No. of days attending hospital 2 4 8 5 24


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 (0-10) (10-20) (20-30) (30-40) (40-50)(50-60)
No. of days attending hospital 2 5 7 5 35


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 2 5 8 6 45


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 (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 2 5 7 5 32


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 (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 4 5 6 6 44


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 (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 2 6 7 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

2

6

7

7

4

4

 10

30

50

70

90

110

20

180

350

490

360 

440

 30   1840

 

Mean  =∑ fx
∑ f

 

Mean
=
 		1840
30

 

= 61.33

 



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 (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 3 6 6 8 42

Answer: 56.90


SOLUTION 1 :

 

weights in kgf Mid value fx

0-20

20-40

40-60

60-80

80-100

100-120

3

6

6

8

4

2

 10

30

50

70

90

110

30

180

300

560

360 

220

 29   1650

 

Mean  =∑ fx
∑ f

 

Mean
=
 		1650
29

 

= 56.90

 



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 2 5 7 8 24

Answer: 30.36


SOLUTION 1 :

 

weights in kgf Mid value fx

0-10

10-20

20-30

30-40

40-50

50-60

2

5

7

8

2

4

 5

15

25

35

45

55

10

75

175

280

90 

220

 28   850

 

Mean  =∑ fx
∑ f

 

Mean
=
 		850
28

 

= 30.36

 



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 2 6 8 6 35

Answer: 61.33


SOLUTION 1 :

 

weights in kgf Mid value fx

0-20

20-40

40-60

60-80

80-100

100-120

2

6

8

6

3

5

 10

30

50

70

90

110

20

180

400

420

270 

550

 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 (0-10) (10-20) (20-30) (30-40) (40-50)(50-60)
No. of days attending hospital 4 5 6 6 45

Answer: 30.33


SOLUTION 1 :

 

weights in kgf Mid value fx

0-10

10-20

20-30

30-40

40-50

50-60

4

5

6

6

4

5

 5

15

25

35

45

55

20

75

150

210

180 

275

 30   910

 

Mean  =∑ fx
∑ f

 

Mean
=
 		910
30

 

= 30.33

 



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 (0-10) (10-20) (20-30) (30-40) (40-50)(50-60)
No. of days attending hospital 2 4 8 5 24

Answer: 30.20


SOLUTION 1 :

 

weights in kgf Mid value fx

0-10

10-20

20-30

30-40

40-50

50-60

2

4

8

5

2

4

 5

15

25

35

45

55

10

60

200

175

90 

220

 25   755

 

Mean  =∑ fx
∑ f

 

Mean
=
 		755
25

 

= 30.20

 



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 (0-10) (10-20) (20-30) (30-40) (40-50)(50-60)
No. of days attending hospital 2 5 7 5 35

Answer: 31.30


SOLUTION 1 :

 

weights in kgf Mid value fx

0-10

10-20

20-30

30-40

40-50

50-60

2

5

7

5

3

5

 5

15

25

35

45

55

10

75

175

175

135 

275

 27   845

 

Mean  =∑ fx
∑ f

 

Mean
=
 		845
27

 

= 31.30

 



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 2 5 8 6 45

Answer: 63.33


SOLUTION 1 :

 

weights in kgf Mid value fx

0-20

20-40

40-60

60-80

80-100

100-120

2

5

8

6

4

5

 10

30

50

70

90

110

20

150

400

420

360 

550

 30   1900

 

Mean  =∑ fx
∑ f

 

Mean
=
 		1900
30

 

= 63.33

 



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 (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 2 5 7 5 32

Answer: 56.67


SOLUTION 1 :

 

weights in kgf Mid value fx

0-20

20-40

40-60

60-80

80-100

100-120

2

5

7

5

3

2

 10

30

50

70

90

110

20

150

350

350

270 

220

 24   1360

 

Mean  =∑ fx
∑ f

 

Mean
=
 		1360
24

 

= 56.67

 



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 (0-20) (20-40) (40-60) (60-80) (80-100)(100-120)
No. of days attending hospital 4 5 6 6 44

Answer: 58.97


SOLUTION 1 :

 

weights in kgf Mid value fx

0-20

20-40

40-60

60-80

80-100

100-120

4

5

6

6

4

4

 10

30

50

70

90

110

40

150

300

420

360 

440

 29   1710

 

Mean  =∑ fx
∑ f

 

Mean
=
 		1710
29

 

= 58.97