The simple interest on an investment of $4000 for one year is $140.
2 answers:
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Answer:
0.3
Step-by-step explanation:
Total number of cases = 60.
favourable number of cases = 18. (Since 18 of them are wearing green shirt)
As we know probability of an event is given by ,
P = Favourable number of cases divided by Total number of cases
Thus here,
P =
= or 0.3
Answer:
And if we solve for a we got
And for this case we can conclude that the time required needs to be 2.2552 minutes or less in order to be sponsored
Step-by-step explanation:
Let X the random variable that represent the time for goals in hockey games of a population, and for this case we know the distribution for X is given by:
Where and
For this part we want to find a value a, such that we satisfy this condition:
(a)
(b)
As we can see on the figure attached the z value that satisfy the condition with 0.10 of the area on the left and 0.90 of the area on the right it's z=-1.28.
If we use condition (b) from previous we have this:
and we can do the following
And if we solve for a we got
And for this case we can conclude that the time required needs to be 2.2552 minutes or less in order to be sponsored