4. Joshua's academic target is to get his test average in the top half of his Statistics class. Which measure can he use to determine if he has achieved his goal? A. Mean В. Median C. Mode D. Range 5. The time Jepoy worked last week was recorded in the table below. Which measure of central tendency would change if Jepoy worked two days less than on Wednesday? Monday Tuesday Wednesday Thursday Friday 8 hours 6 hours 7 hours 4 hours 6 hours A. Mean B. Median C. Mode D. Range 6. The median score is also the_ A. 75th percentile C. upper quartile B. 5th decile D. first quartile 7. Mary obtained a score of 45 which is equivalent to a 60th percentile rank in Statistics test. Which of the following is NOT true? A. She scored above 60% of her classmates B. Forty percent of the class got scores of 45 and above C. If the passing grade is the lower quartile, she passed the test. D. Her score is below the 5th decile. 8. Juvy's score in a 75-item was the median score. What is her percentile rank? A. 75 В. 35 C. 37 D. 50

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
icon
Concept explainers
Topic Video
Question

encircle ALL of the correct answers in this given questions. ALL questions should be answered 

4. Joshua's academic target is to get his test average in the top half
of his Statistics class. Which measure can he use to determine if he
has achieved his goal?
A. Mean
B. Median
с. Mode
D.
Range
5. The time Jepoy worked last week was recorded in the table below.
Which measure of central tendency would change if Jepoy worked
two days less than on Wednesday?
Monday
Tuesday
Wednesday
Thursday
Friday
8 hours
6 hours
7 hours
4 hours
6 hours
A. Mean
B. Median
C. Mode
Range
6. The median score is also the
A. 75th percentile
C. upper quartile
B. 5th decile
D. first quartile
7. Mary obtained a score of 45 which is equivalent to a 60th percentile
rank in Statistics test. Which of the following is NOT true?
A. She scored above 60% of her classmates
B. Forty percent of the class got scores of 45 and above
C. If the passing grade is the lower quartile, she passed the test.
D. Her score is below the 5th decile.
8. Juvy's score in a 75-item was the median score. What is her
percentile rank? A. 75
В. 35
C. 37 D.
50
D.
Transcribed Image Text:4. Joshua's academic target is to get his test average in the top half of his Statistics class. Which measure can he use to determine if he has achieved his goal? A. Mean B. Median с. Mode D. Range 5. The time Jepoy worked last week was recorded in the table below. Which measure of central tendency would change if Jepoy worked two days less than on Wednesday? Monday Tuesday Wednesday Thursday Friday 8 hours 6 hours 7 hours 4 hours 6 hours A. Mean B. Median C. Mode Range 6. The median score is also the A. 75th percentile C. upper quartile B. 5th decile D. first quartile 7. Mary obtained a score of 45 which is equivalent to a 60th percentile rank in Statistics test. Which of the following is NOT true? A. She scored above 60% of her classmates B. Forty percent of the class got scores of 45 and above C. If the passing grade is the lower quartile, she passed the test. D. Her score is below the 5th decile. 8. Juvy's score in a 75-item was the median score. What is her percentile rank? A. 75 В. 35 C. 37 D. 50 D.
9. If you have the variance, how do you get the standard deviation?
A. Square it.
C. Take the reciprocal
B. Take the square root
D. Subtract the mean
10. The variance and mean for a given set of data is 25 and 64
respectively. Calculate the standard deviation.
A. 625
В. 5
C. 2.56
D. 8
11. When the correlation coefficient, r, is close to one
A. there is no relationship between the two variables
B. there is a strong linear relationship between the two variables
C. it is impossible to tell if there is a relationship between
thetwo variables
D. the slope of the regression line will be close to one.
12. Let x be a normal random variable with a mean of 50 and a standard
deviation of 3. A z-score was calculated for x, and the z-score is -1.2.
What is the value of x?
A. 53.6
B. 0.1151
С. 46.4
D. 0.8849
13. Mr. Z has just given a chemistry exam and wanted to calculate
the 'range' of performance of his students. What must he do?
A. Identify the central score.
B. Find the score that occurs most often.
C. Identify how far from average each score is.
D. Subtract the lowest score from the highest score.
14. To determine the mean of a set of data, the first step is to
A. calculate the median
B. add the sum of the values in the set
C. Determine the standard deviation of the set of values
D. Calculate the mode first and then the sum
15. When the correlation coefficient, r, is close to one
A. there is no relationship between the two variables
B. there is a strong linear relationship between the two variables
C. it is impossible to tell if there is a relationship
between thetwo variables
D. the slope of the regression line will be close to one
Transcribed Image Text:9. If you have the variance, how do you get the standard deviation? A. Square it. C. Take the reciprocal B. Take the square root D. Subtract the mean 10. The variance and mean for a given set of data is 25 and 64 respectively. Calculate the standard deviation. A. 625 В. 5 C. 2.56 D. 8 11. When the correlation coefficient, r, is close to one A. there is no relationship between the two variables B. there is a strong linear relationship between the two variables C. it is impossible to tell if there is a relationship between thetwo variables D. the slope of the regression line will be close to one. 12. Let x be a normal random variable with a mean of 50 and a standard deviation of 3. A z-score was calculated for x, and the z-score is -1.2. What is the value of x? A. 53.6 B. 0.1151 С. 46.4 D. 0.8849 13. Mr. Z has just given a chemistry exam and wanted to calculate the 'range' of performance of his students. What must he do? A. Identify the central score. B. Find the score that occurs most often. C. Identify how far from average each score is. D. Subtract the lowest score from the highest score. 14. To determine the mean of a set of data, the first step is to A. calculate the median B. add the sum of the values in the set C. Determine the standard deviation of the set of values D. Calculate the mode first and then the sum 15. When the correlation coefficient, r, is close to one A. there is no relationship between the two variables B. there is a strong linear relationship between the two variables C. it is impossible to tell if there is a relationship between thetwo variables D. the slope of the regression line will be close to one
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Application of Algebra
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.
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
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 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…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
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
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman