10 total pieces of the pie
-5
-2
And only 3 remained so your answer would be
3/10
Answer:
a) h(x; 7, 5, 12) = (⁵Cₓ)( ⁷C₇₋ₓ) / (¹²C₇)
b) 2.92
Step-by-step explanation:
a)
Here
Number of interviewees = N = 12
Number of job openings = M = 5
Interviews schedules for the first day = n = 7
N − M = 12 - 5 = 7
Using hypergeometric distribution:
Let X be the no. top four candidates interviewed on first day.
The probability mass function of X:
P(X = x) = /
It can be written as:
h(x; n, M, N) = /
= (5Cx) (7C7-x) / (12C7)
= (⁵Cₓ)( ⁷C₇₋ₓ) / (¹²C₇)
h(x; 7, 5, 12) = (⁵Cₓ)( ⁷C₇₋ₓ) / (¹²C₇)
b)
The expectation is: E(X) = np
E(X) = n * M/N
= 7 * 5/12
= 7 * 0.41667
= 2.9167
So you know that angle I is verticle angles to the 60 degrees angle
And you known that the verticloe angle to 20 is an important part
Then you use the sum of interior angles formula
which is all the angles in the triangle should add up to 180
20 + 60 + m< HEI = 180
80 + m< HEI = 180
-80 -80
m< HEI = 100
I believe the measure of the angle is 100, I hope it makes sense too!
The answer is b,
if you put them all in decimal form it would look like this:
-6.53, -6.25, 6.57, 6.75
The answer is 160 to this problem