Answer: The employee's expected earnings is 78.5.
Step-by-step explanation:
Since we have given that
$ Probability
0 0.07
25 0.12
50 0.17
75 0.14
100 0.28
125 0.18
150 0.04
We need to find the employee's expected earnings.
As we know the formula for "Expectation":

Hence, the employee's expected earnings is 78.5.
Answer:
Hmm, this one is confusing. Try B, it seems most probable.
Step-by-step explanation:
Answer:
76.32
Step-by-step explanation:
Move the decimal point two times to the left 48. --> .48
Multiply .48 by 159
= 76.32
Answer: B. The data represent a sample since the data are a subset of units.
Step-by-step explanation:
- A population is the largest group of entire observations that can be made during a study.
- A sample is a finite subset of the population that represents the entire population.
Here,
Population = Participants for the study were those who used a popular social networking Web site.
Since the entire data for the "persons used a popular social networking Web site" is not possible.
There have been taken a sample of them.
∴ Correct answer is B. The data represent a sample since the data are a subset of units.
It will take 3 laps. 90*35=3150 1000 m = 1 km