atistic. Help me
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Statistic.
Help me answer from 1-20 items
Transcribed Image Text:HOICE.
Directions: Read each question carefully and choose the letter that best describes your
answer.
1. Which of the following is a variable whose value is obtained by measuring?
a. Continuous
2. You decide to collect a bunch of bottles of soft drink and measure the volume of soft drink
in each bottle. Let X be the number of milliliter (ml) of soft drink in each bottle. What type
of variable is X?
a. X is a constant.
b. Discrete
c. Interval
d. Nominal
c. X is a discrete random variable
d. X is a continuous random variable
b. X is a place holder.
3. If a coin is tossed, what are the possible values of the random variable for the number of
heads?
а. 0, 1
4. Suppose you tossed two coins. What are the sample spaces ?
а. НН,
5. A formula that gives a probability function.
a. Continuous Probability Distribution.
b. Discrete Probability Distribution.
6. The properties of a discrete probability distribution are
a. 0s P(x ) <1 and E P(x)=D1
b. 02 P(x ) S1 and E P(x)3D1
7 What must be the sum of the probabilities P(X) of all the values in the discrete random
b. 0, 1, 2
c. 1, 2, 3
D. 0,1,2,3
b. HH , TΗ,
с. НН, НТ, ТТ
d. HH, HT, TT, TH
c. Partial Probability Distribution.
d. None of the above.
and
c.0< P(x ) <1 and Σ P(x)1
d. 0< P(x ) <1 and Σ P(x)<1
variable?
a. 1%
b.
10%
c. 100%
d. 1 000%
For numbers 8 - 10, use the given data:
The numbers of boxes of face mask being sold by a pharmacy per
day are 5, 6, 7, 8, 9, and 10 along with the probabilities of 0.2,
0.1, 0.1, 0.1, 0.2 and 0.3 respectively.
8. Based from the data given, more likely, how many boxes of face mask would the pharmac
sell per day?
a. 5
9. What is the mean of the discrete random variable?
b. 6
c. 9
d. 10
b. 6.9
C. 7.9
d. 8.9
a. 5.9
1
Transcribed Image Text:10 Which of the following statements best interpret the computed mean?
a The pharmacy would sell more or less 8 boxes of face mask per day
b. The pharmacy would sell more than 7 boxes of face mask per day.
c. The pharmacy would sell exactly 7 boxes of face mask per day.
d. The pharmacy would sell 8 boxes of face mask per day.
11. What percentage of the normal curve is u ± o ?
а. 50%
12. 95% of the students at school weigh between 62kg and 90 kg. Assuming this data is
normally distributed, what is the mean?
a. 66 kg
13. A machine produces electrical components. 99.7% of the components have lengths
between 1.176 cm and 1.224 cm. Assuming this data is normally distributed, what is
mean?
a. 1.190 cm
14. What is the area that corresponds to z-value, z = 1.25?
a.0.3531
15. Which is the upper 10% of the nommal curve?
a. z = 0.1554
16. Which is the correct probability notation for the area between z = -2 and z = -1.5?
a. P(-2 < z< -1.5)
b. P(-1.5 <z < -2)
17. What is being represented by z in the equation z = x-p/o ?
a. Normal Random Variable
b. Standard Normal Variable
18. Which symbol represents population mean?
a. O
19. 11. What is z when X= 45, µ = 67, and o = 8?
a. -2.75
20. Let z be a normal random variable with a mean of 0 and a standard deviation of 1.
Determine P(z s 1.4).
a. 0
b. 68%
c. 75%
d. 95%
b. 72 kg
c. 76 kg
d. 86kg
b. 1.200 cm
c. 1.211 cm
d. 1.219 c
b. 0.3749
C. 0.3944
d. 04115
b. z = 1.28
C. Z = 1.54
d. z = 2.43
c. P(z < -1.5 +-2)
d. P(-2 - 1.5 < z)
c. Mean of the scores
d. Standard Deviation
b. X-bar
C. U
d. z
b. -0.55
c. 0.55
d. 2.75
b. 0.0808
c. 0. 4192
d. 0.9192
Reviewed/Checked by:
Noted by:
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman