1. Figure below gives the boxplots comparing the base yearly salaries of employees in marketing and employees in research for a large company. Identify the five number summaries.
![1268_Comparison.jpg](https://secure.tutorsglobe.com/CMSImages/1268_Comparison.jpg)
For each profession. Interpret them like we did in the class.
2. An insurance company determines that in every 100 claims, 4 are fraudulent. What is the probability that the next claim the company processes will be fraudulent?
3. A review of emergency room records at rural Millard Fellmore Memorial Hospital was performed to determine the probability distribution of the number of patients entering the emergency room during a 1-hour period. The following table lists this probability distribution.
Patients per hour |
Probability |
0 |
0.2725 |
1 |
0.3543 |
2 |
0.2303 |
3 |
0.0998 |
4 |
0.0324 |
5 |
0.0084 |
6 |
0.0023 |
Determine the probability that the number of patients entering the emergency room during a randomly selected 1-hour period is
a) 2 or more
b) exactly 5
c) fewer than 3
d) at most 1
4. Find the missing probability in the following probability distribution.
x |
P(x) |
0 |
0.07 |
1 |
0.20 |
2 |
0.38 |
3 |
|
4 |
0.13 |
5. Determine whether the distribution given below are valid probability distributions or not.
x |
P(x) |
0 |
0.30 |
1 |
0.25 |
2 |
0.25 |
3 |
0.15 |
4 |
0.05 |
6.Determine whether the random variable x is discrete or continuous
a. Let x represent the number of pumps in use at a gas station
b. Let x represent the weight of a truck at a weigh station
Attachment:- Math questions.rar