Question

the following table shows the ages of persons who visited a museum on a certain day.find the median age of the visitors

please answer fast

Answer 1

Answer:

37.5

Step-by-step explanation:

the following table shows the ages of persons who visited a museum on a certain day.find the median age of the visitors

please answer fast

Less than 10                       3

10 - less than 20               10-3 = 7

20 - less than 30            22 - 10 = 12

30 - less than 40             40 -22 = 18

40 - less than 50             54 - 40 = 14

50 - less than 60             71 -54 = 17

Total are 71

So median should be  (71+1)/2 = 36

36 is after 22 but before 40

so median age lies between 30 - 40

Median = L +   ( (n/2) − B)/G )  × w

L = 30

n = 71

B = 22

G = 18

w = 10

Median = 30  + (((71/2)  - 22)/18 ) * 10

= 30 + 7.5

= 37.5