What is the z-score of Tom's salary? Multiple Choice

-1.89

-1.29

1.29

1.89

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(i) About 95.5% percent of the area under the normal curve is within plus two and minus two standard deviations of the mean.

(ii) The normal distribution is a continuous probability distribution.

(iii) In a standard normal distribution,

= 0 and = 1.

Multiple Choice

(i), (ii), and (iii) are all false statements.

(i) and (ii) are correct statements but not (iii).

(i) is a correct statement but not (ii) or (iii).

(i) and (iii) are correct statements but not (ii).

(i), (ii), and (iii) are all correct statement