A vial of flu vaccine contains enough for 10 shots. This past year your health clinic gave 220 flu shots. How many vials should
2 answers:
Answer:
25 vials should be ordered for next year.
Step-by-step explanation:
A vial of flu vaccine contains enough for 10 shots.
This year health clinic gave 220 flu shots. So number of vials required this year will be = vials
Next year there is an estimation that we will require 10% more vials.
Now number of vials required next year = Number of vials this year + % increase
= 22 + 10% of 22
= 22 +
= 22 + 2.2
= 24.2
Since order of vaccine can not be placed in fractions or decimals, so 25 vials will be required.
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Answer:
The expected value of the safe bet equal $0
Step-by-step explanation:
If
is a finite numeric sample space and
for k=1, 2,..., n
is its probability distribution, then the expected value of the distribution is defined as
What is the expected value of the safe bet?
In the safe bet we have only two possible outcomes: head or tail. Woodrow wins $100 with head and “wins” $-100 with tail So the sample space of incomes in one bet is
S = {100,-100}
Since the coin is supposed to be fair,
P(X=100)=0.5
P(X=-100)=0.5
and the expected value is
E(X) = 100*0.5 - 100*0.5 = 0