What is the domain of this relation? {(5,6), (5,3), (5,1), (5,0), (5,-6), (5,-10)}
1 answer:
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Answer:
Total number of chips Caleb have = 8
Total number of chips Suzanne have = 30
Step-by-step explanation:
In Caleb case -
Three out of every four chips is blue
⇒ If Caleb has total chips = 4
Then Blue chips = 3
⇒White chips = 4 - 3 = 1
Now,
If Caleb have 6 blue chips
⇒3 Blue chips = 4 total chips
1 Blue chip = total chips
⇒6 blue chips = ×6 = 4×2 = 8 total chips
∴ we get
Number of chips become = 8
In Suzanne case -
One out of every five chips are blue.
⇒ If Suzanne has total chips = 5
Then Blue chips = 1
⇒White chips = 5 - 1 = 4
Now,
If Suzanne have 6 blue chips
⇒1 Blue chips = 5 total chips
⇒6 blue chips = 5×6 = 30 total chips
∴ we get
Number of chips become = 30
Answer:
∑E(x) = 13.49167 floors
Step-by-step explanation:
The expected number of floors no one get off = ∑E(x) where i is from 0 to 23
and E(x) = ∑x
P(x
)
here x is the indicator of floor where no one gets off, its value is 0 when atleast one person get off on its floor and 1 when when no one gets off.
Now,
P(x=1) = (22/23)¹²
P(x=0) = [1-(22/23)¹²]
Now,
E(x) = ∑x
P(x
) = 0* [1-(22/23)¹²] + 1*(22/23)¹² =0.586594704
For total number of floors where no one gets off
∑E(x) = E(x₁)+E(x₂)+E(x₃)........................+E(x₂₃)
∑E(x) = 23*0.586594704
∑E(x) = 13.49167 floors