Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1 answer:
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Answer:
0.789
Step-by-step explanation:
Number of beef flavored Ramen noodles = 10
Number of chicken flavored Ramen noodles = 10
Total number of noodles = 20
Number of ways to select 3 packages:
Number of ways to select two beef flavored Ramen noodle = = 45
Number of ways to select one chicken flavored Ramen noodle = 10
Number of ways to select two chicken flavored Ramen noodle = = 45
Number of ways to select one chicken flavored Ramen noodle = 10
Total number of ways so that one chicken and one beef Ramen selected = 450 + 450 = 900
Formula for probability of an event E can be observed as:
Required probability is:
If you're just focusing on the boundary, it's the circle . Parameterize it by taking
and
, with
. Then
reduces to a univariate function
:
Then you can find any extrema on the boundary by checking the critical points of .