Answer:
An estimate of 120 cars will be parked.
Step-by-step explanation:
We can easily solve this problem by applying a rule of three
1 student with car ------------------------------------------- 9 students
x -------------------------------------------------------------- 1080 students
x = 1*(1080/9)
x = 120 students with car
An estimate of 120 cars will be parked.
Answer:
Then this is the expected price for the weekly shipment of rats =13.25
Step-by-step explanation:
Suppose the price for the shipment of rats are as follow
price 10 12.50 15
and probability may be
0.2 0.3 0.5
then the expected value is equal to
=10* 0.2 + 12.50 *0.3 + 15 *0.5
=13.25
then this is the expected price for the weekly shipment of rats
The first partner in the handshake can be any one of 15 people.
The second partner can be any one of 14 people.
So the total number of possible arrangements is (15 x 14) = <u>210</u> .
<em><u>BUT . . . .</u></em>
If Mr. Smith and Mr. Jones are shaking hands, it doesn't matter which one is the first partner and which one is the second partner ... It's the same handshake either way.
That number of ' <u>210</u> ' up above counted both ways separately. The real number of handshakes <em>between different people</em> is half of that 210/2 = <em>105 handshakes</em>.