"Syəqen pue sdoidej'suindwoo dozysəp sijas doys v zł
7
Here is a probability scale.
It shows the probability of each of the events A, B, C and D.
A
B
C
D
(a) Write down the letter of the event that is certain.

c

step-by-step explanation:

i think because what else can be a sample of every member

c) the median for town a 30" is greater than the median for town b 25"

step-by-step explanation:

town a, median = q2 = 30

town b, median - q2 = 25

so the median for town a 30" is greater than the median for town b 25"