The number of standard deviations z that a particular value of r is from the mean ? can be computed as z = (r - ?)/ ?. Suppose that you work as a commission-only insurance agent earning $1,000 per week on average. Suppose that your standard deviation of weekly earnings is $500 . What is the probability that you earn zero in a week? Use the following brief z-table to help with this problem. Z
value Probability -3 .0013 -2 .0228 -1 .1587 0 .5000
a. 1.3% chance of earning nothing in a week
b. 2.28% chance of earning nothing in a week
c. 15.87% chance of earning nothing in a week
d. 50% chance of earning nothing in a week
e. none of the above
b
Economics
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Suppose the marginal utilities for the first three cans of soda are 100, 80 and 60, respectively. The total utility received from consuming 2 cans is
A) 20. B) 80. C) 90. D) 180.
Economics
The International Monetary Fund, one of the Bretton Woods Institutions,
(a) was meant to provide short-term credit. (b) was meant to provide long-term credit. (c) was meant to provide both short- and long-term credit. (d) was not meant to provide credit.
Economics