Which of the following assumptions concerning the probability distribution of the random error term in a simple regression model is stated incorrectly? a. the distribution is normalb. the mean of the distribution is 0c. the errors are not independentd. the variance of the distribution is constantthe probability that a person tested positive on a screening test given that he/she has a disease is called the: a. negative predicitive valueb. positive predicitive valuec. sensitivityd. specificity

c

step-by-step explanation:

answer: the answer is one of

step-by-step explanation:   we are given to write a proper fraction where the whole is divided into an even number of equal parts less than ten, and an odd number of those parts exist.

an even number less than 10 may be one of 2, 4, 6 or 8. so, the whole may be one of these four evens.

now, an odd number of these parts must exist, so the numerator must be an odd number, one of 1, 3, 5 or 7. it cannot be 9 because then the fraction will become improper.

thus, our fraction may be one of the following