Let D = difference between mean and median of data.
Mean = (22 + 8 + 10 + 18 + 12 + 20)/6
Mean = 90/6
Mean = 15
Let m = median
m = 8, 10, 12, 18, 20, 22
m = (12 + 18)/2
m = 30/2
m = 15
D = M - m
D = 15n- 15
D = 0
18900cm = 189m
189 / 1.8 = 105m.
The blackboard's length in meters is 105m.
Answer:
Therefore the probability that the card is not brown is
.
Step-by-step explanation:
Probability: Probability is the ratio of the favorable outcome to the total outcome.

Given that, a box contains 2 cards blue in color , 4 cards brown in color and 6 cards yellow in color.
Total number of cards= (2+4+6)=12
∴P(getting a brown card)



∴P(not getting a brown card)
=1 - P(getting a brown card)


Therefore the probability that the card is not brown is
.
Is this a true or false question? I'm confused.
Answer:
the answer is c
Step-by-step explanation: