1. A random sample of Californians has a mean age of 34.4, but you want to know the mean age of all Californians. It like you want to generalize from a a. population; sample; descriptive statistics b. statistic; parameter; sampling error c. central tendency measure; variability measure; random selection d. sample; population; operational definitions to a and therefore you need to worry about 2. Which one sounds like an example of the experimental method? Looking for a relationship between education and income by doing a survey asking about both education and inc Researching whether aggression and violent media consumption are related by asking kids about their violent me consumption and asking their teachers about their aggression Putting people in three different temperature rooms to see if temperature affects productivity a. b. с. d. None of the above 3. What is the value of E(X2 + 2) for the following scores? Scores: 7, 10, 12, 5, 8, 9, 5, 6 a. 624 b. 526 C. 540 d. 804 4. "Letter grade in a class (A, B, C, D, F)" is which type of variable? a. Nominal b. Ordinal C. Interval d. Ratio 5. Imagine that the following four sentences are questions on a survey. Which question would produce data that belong to a discrete variable? What is your age? b. How tall are you? Do you vote Republican or Democrat? d. What is your annual income in thousands of dollars? a. C.
1. A random sample of Californians has a mean age of 34.4, but you want to know the mean age of all Californians. It like you want to generalize from a a. population; sample; descriptive statistics b. statistic; parameter; sampling error c. central tendency measure; variability measure; random selection d. sample; population; operational definitions to a and therefore you need to worry about 2. Which one sounds like an example of the experimental method? Looking for a relationship between education and income by doing a survey asking about both education and inc Researching whether aggression and violent media consumption are related by asking kids about their violent me consumption and asking their teachers about their aggression Putting people in three different temperature rooms to see if temperature affects productivity a. b. с. d. None of the above 3. What is the value of E(X2 + 2) for the following scores? Scores: 7, 10, 12, 5, 8, 9, 5, 6 a. 624 b. 526 C. 540 d. 804 4. "Letter grade in a class (A, B, C, D, F)" is which type of variable? a. Nominal b. Ordinal C. Interval d. Ratio 5. Imagine that the following four sentences are questions on a survey. Which question would produce data that belong to a discrete variable? What is your age? b. How tall are you? Do you vote Republican or Democrat? d. What is your annual income in thousands of dollars? a. C.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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1. A random sample of Californians has a mean age of 34.4, but you want to know the mean age of all Californians. It
like you want to generalize from a
a. population; sample; descriptive statistics
b. statistic; parameter; sampling error
C. central tendency measure; variability measure; random selection
d. sample; population; operational definitions
to a
and therefore you need to worry about
2. Which one sounds like an example of the experimental method?
Looking for a relationship between education and income by doing a survey asking about both education and inc
Researching whether aggression and violent media consumption are related by asking kids about their violent me
consumption and asking their teachers about their aggression
Putting people in three different temperature rooms to see if temperature affects productivity
a.
b.
с.
d.
None of the above
3. What is the value of E(X2 + 2) for the following scores? Scores: 7, 10, 12, 5, 8, 9, 5, 6
a.
624
b. 526
C. 540
d. 804
4. "Letter grade in a class (A, B, C, D, F)" is which type of variable?
a.
Nominal
b.
Ordinal
C. Interval
d. Ratio
5. Imagine that the following four sentences are questions on a survey. Which question would produce data that belong to
a discrete variable?
What is your age?
b. How tall are you?
Do you vote Republican or Democrat?
d. What is your annual income in thousands of dollars?
a.
C.
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