BIOSTATISTICS ( Community medicine) OSPE

OSPE

STATION 1:


Calculate the median for each of these set of data.
a) 7, 7, 2, 3, 4, 2, 7, 9, 31 (2)
b) 36, 41, 27, 32, 29, 38, 39, 43 (2)



STATION 2:


Weights of 20 students of class eight were recorded and the data was presented as follows:

S.no Weights (kg)
1 30
2 35
3 35
4 36
5 38
6 40
7 40
8 40
9 42
10 43
11 44
12 48
13 50
14 51
15 51
16 51
17 52
18 55
19 58
20 60


TASK:

a) Group the given data into class intervals of 5. (2)
b) Calculate the relative frequency of class three. (2)

STATION 3:


Suppose we obtain a random sample of 100 individuals. The mean systolic blood pressure is 135mmHg and standard deviation is 5mmHg.


TASK:
a) What possible range of mean systolic blood pressure could we expect within 95% confidence limits? (4)
STATION 4:
The sales (in liters) of mineral water from four super stores A, B, C and D were noted for the first week of June and data was presented as follows:

Super stores A B C D
Proportion of Sales 32.14 50 10.7 7.1
TASK:
From the given data calculate the degrees required to construct pie chart. (4)


STATION 5:

A B



A B C D E F

TASK:
a) Identify the curves A & B. (1)
b) Label the points A, B, C, D, E & F. (3)