In a class, 20 people live on campus and 4 people live off-campus. If we were to draw one student's name from a hat, what is the
2 answers:
Firsrt, find the total number of people that you can draw overall. To do this, add the number of people on campus and the number of people off campus to get 24 people overall. This will be your denominator. Then, the numerator is the number of the group of people that the question is asking for. In this case, it would be the 4 people off campus. Finally, put in the values to get that the probability is
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Given:
The width of a rectangle is x centimeters and its length is (x+ 2) cm.
To find:
The expression for the perimeter of the rectangle.
Solution:
We know that, perimeter of a rectangle is
We have,
Width = x cm
Length = (x+2) cm
Putting these values in the above formula, we get
Therefore, the required expression for the perimeter of the rectangle is (4x+4) cm.
Answer:
0.2196
Step-by-step explanation:
Given that
Mean = 4.56 million visitors per day
Standard deviation = 820,000 visitors per day
According to the given situation the calculation of probability is shown below:-
Here we will find the value of P (3 ≤ X ≤ 4)
= 0.2483 - 0.0287
= 0.2196
Therefore the probability that the web site has between 3 million and 4 million visitors in a single day is 0.2196