Suppose you have invested 25% of your portfolio in four different stocks. The mean and standard deviation of the annual return on each stock are as shown below. The correlations between the annual returns on the four stocks are also shown below. 
-What is the probability that your portfolio will lose money during the course of a year?
Definitions:
Pap Smear
A screening test used to detect cervical cancer and precancerous conditions by collecting cells from the cervix for examination.
Cervical Cells
Cells located in the cervix, the lower, narrow part of the uterus, which can be tested for abnormalities through a Pap smear.
Nesting
Behavior characterized by the urge to prepare one's home for a new arrival, commonly observed in the latter stages of pregnancy.
Labor
The process of childbirth from the start of uterine contractions to delivery.
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