Answer:
0.18
Step-by-step explanation:
Given that:
P₁ = $10, P₂ = $20
From the tables Q₁ = 900, Q₂ = 800
Using midpoint method:
Percentage change in quantity = 
Percentage change in price =

Price of elastic demand = Percentage change in quantity/ Percentage change in price = -11.76% / 66.67% = 0.18
The Price of elastic demand is positive because we took the absolute value and elasticity are always positive
Therefore since Price of elastic demand < 1, the demand is inelastic in this interval.
This means that, along the demand curve between $10 to $20, if the price changes by 1%, the quantity demanded will change by 0.18%. A change in the price will result in a smaller percentage change in the quantity demanded. For example, a 10% increase in the price will result in only a 1.8% decrease in quantity demanded and a 10% decrease in the price will result in only a 1.8% increase in the quantity demanded
Answer:

Step-by-step explanation:
Given: Three yarn colors are red, black, and blue
To find: probability that the first color is blue and the second color is red
Solution:
Probability is the chance of occurrence of some event.
Probability = number of favourable outcomes/Total number of outcomes
Probability that the first color is blue = 
probability that the second color is red if the first color is blue = 
So,
probability that the first color is blue and the second color is red = 
120,000 people.
110,000 - 100,000 = 10,000
110,000 + 10,000 = 120,000 peoples.