QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
# ASSESSMENT
Read each item carefully. Write the letter of the best answer for each test item before the number.
1. Which of the following statement describe a continuous random variable?
A. The number of students present in a Class Temperance.
B. The average distance travelled by a tricycle in a month.
C. The number of motorcycles owned by a randomly selected household.
D. The number of girls taller than 5 feet in a random sample of 6 girls.
2. Which of the following is an example of discrete variable?
A. Distance travelled between cars.
C. Number of blue marbles in the box.
B. Height of the students in a section.
D. Weight of potatoes in the basket.
3. You decided to conduct a survey of families with two children. You are interested incounting the number of girls (out of 2 children) in each family. Is this a random variable?
A. Yes, it is a random variable.
C. Maybe.
B. No, it is not a random variable.
D. Cannot be determined.
4. Suppose you tossed three coins. What are the sample spaces for the experiment above?
A. HHH, TTT
C. TTT, HHH, TTH, THT, HTH
B. TTT, HHH, HHT, THT, HTH
D. TTT, TTH, THT, HTT, HHT, HTH, THH, HHH
5. Suppose three laptops are tested. Let D represent the defective laptop and N for the non-defective laptop. How many possible outcomes will occur from the experiment?
A. 3
B. 4
C. 8
D. 9
6. Based on number 5, if we let $X$ be the random variable representing the number of non-defective laptops. What are the possible values of the random variable? A. 0,1
B. $0,1,2$
C. 1, 2, 3
D. $0,1,2,3$
7. Which probability distribution represents the given problem on number 6? A.
B.
| $x$ | 0 | 1 | 2 |
| :-- | :-- | :-- | :-- |
| $P(x)$ | $1 / 2$ | $1 / 2$ | $1 / 4$ |
| $x$ | 0 | 1 | 2 |
| :-- | :-- | :-- | :-- |
| $P(x)$ | $1 / 2$ | $3 / 8$ | $3 / 8$ |
C.
D.
| $x$ | 0 | 1 | 2 |
| :-- | :-- | :-- | :-- |
| $P(x)$ | $1 / 4$ | $1 / 2$ | $1 / 4$ |
| $x$ | 0 | 1 | 2 | 3 |
| :-- | :-- | :-- | :-- | :-- |
| $P(x)$ | $1 / 8$ | $1 / 8$ | $35 / 8$ | $1 / 8$ |
8. The given table represents a probability distribution. What is $P(x) \mathrm{i}^{2} x= 1 + 4$ ?
| $x$ | 4 | 8 | 16 | 16 |
| :--: | :--: | :--: | :--: | :--: |
| $P(x)$ | 1 | 2 | 3 | 3 |
6 months agoReport content
Answer
Full Solution Locked
Sign in to view the complete step-by-step solution and unlock all study resources.
Step 1: Identify the correct answer for question 1.
The correct answer is D. The number of girls taller than 5 feet in a random sample of 6 girls. This is because the height of individuals is continuous, but the condition of being a girl taller than 5 feet creates a discrete set of possibilities.
Step 2: Identify the correct answer for question 2.
The correct answer is C. Number of blue marbles in the box. This is because the number of marbles is discrete, as you can either have a marble or not have a marble (i.e., whole numbers only).
Final Answer
1. D 2. C 3. A 4. D 5. C 6. B 7. Table B 8. $P(x) i^{2} x= 1 + 4 = 1$
Need Help with Homework?
Stuck on a difficult problem? We've got you covered:
- Post your question or upload an image
- Get instant step-by-step solutions
- Learn from our AI and community of students