There are four balls with the same size in a box. The balls are numbered 1, 2, 3 and 4. Sonya randomly picks up one ball, puts i
t back, and then randomly picks up one ball from the box. Let denote the sum of the numbers on the two balls she picked up. Find (round off to second decimal place).
1 answer:
Answer:
Explanation:
Here we have sampling with replacement. There are 4 x 4 = 16 out comes each with equal probability 1/16 .
The sample space being {1,2,3,4} {1,2,3,4} .
The random variable X representing the sum of the numbers on the balls has values from 2 to 8.
The other detailed steps and appropriate analysis is shown in the attached file.
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Answer: B. The firm hires 45 workers and earns a $1200.00 Economic Profit
Explanation:
According to the table, when the Market Equilibrium Wage Rate is $105, the number of workers to hire would be 45 and the revenue would be $7,425.
If 45 workers are hired, they would cost:
= 45 * 105 per worker
= $4,725
Added to the fixed cost, the total cost would be:
= 4,725 + 1,500
= $6,225
The profit would be:
= Revenue - cost
= 7,425 - 6,225
= $1,200
