Step-by-step explanation:
The expected value is the sum of each probability times the value.
E = 0.25 (10) + 0.75 (-5)
E = -1.25
The stock is expected to decrease by $1.25.
Answer: 53.44
Step-by-step explanation:
Answer:
<h2>The measure of elevation is 65.4° above the ground.</h2>
Step-by-step explanation:
The measure of elevation refers to angle of elevation.
The problem forms a right triangle, and we know its hypothenuse and the horizontal leg. Using trigonometric reason we find the angle

Therefore, the measure of elevation is 65.4° above the ground.