Question 1 Are the statements in ak true or false A Descript

Question 1. Are the statements in a-k true or false?

A. Descriptive statistics involve using sample data to make inferences or generalizations about a population

B. Methods for categorizing, counting or measuring variables use the measurement scales: Nominal, Ordinal, Interval and Ratio

C. A random variable is numerical and can only be measured

D. The data set on ethnic groups in Stockton is a qualitative variable

E. Random, systematic, stratified and cluster are four techniques for sampling data

F. Cross-sectional, restrospective and prospective studies are statistical experiments used in gathering data

G. Double-blinding, randomized block design and replication are used to control the effect of variables or treatment during an experiment

H. Permutation is used for counting arrangements when order is important

I. Two cards are selected without replacement, these events are independent

J. The Binomical and Poisson distributions are discrete probability distributions since the values of the random variable x are discrete.

K. Given that µ = E(x) = 75, then 2E(x -15) = 150

A. Descriptive statistics involve using sample data to make inferences or generalizations about a population : True

B. Methods for categorizing, counting or measuring variables use the measurement scales: Nominal, Ordinal, Interval and Ratio : True

C. A random variable is numerical and can only be measured : True

D. The data set on ethnic groups in Stockton is a qualitative variable : False

E. Random, systematic, stratified and cluster are four techniques for sampling data : True

F. Cross-sectional, restrospective and prospective studies are statistical experiments used in gathering data : True

G. Double-blinding, randomized block design and replication are used to control the effect of variables or treatment during an experiment : TRUE

H. Permutation is used for counting arrangements when order is important : True

I. Two cards are selected without replacement, these events are independent : True (As first card and second card type is not mentioned)

J. The Binomical and Poisson distributions are discrete probability distributions since the values of the random variable x are discrete. : True

K. Given that µ = E(x) = 75, then 2E(x -15) = 150 : False