HELP IM TIMED which expression represents the average of three test scores
2 answers:
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Answer:
Step-by-step explanation:
We require more information by I will explain in principle:
If Type A has at least 300 hours and Type B at least 400 hours.
You need to determine the Probability density function of X and Y and then subtract 1 from both
This will give you the probability of the expression.
Check the picture below.
so, notice, the composite is just a 4x6 rectangle, and a triangle whose base is 6 and altitude is 2. So, we can simply get the area of each figure and sum them up.
so, notice, the composite is just a 4x6 rectangle, and a triangle whose base is 6 and altitude is 2. So, we can simply get the area of each figure and sum them up.