Y = 46.2. View the picture to see steps
15.2
16 + 12 + 8 + 22 + 25 + 8 = 91 / 6 = 15.16 = 15.2
Answer:
Ok, the solution to the first one. See below.
Step-by-step explanation:
See attachment below.
Best Regards!
Answer:
The estimate of the proportion of new car buyers who prefer foreign cars is 0.24.
Step-by-step explanation:
We find the estimate of the proportion from the sample, as it is a large sample.
Suppose a sample of 2676 new car buyers is drawn. Of those sampled, 642 preferred foreign over domestic cars.
So
The estimate of the proportion of new car buyers who prefer foreign cars is 0.24.
<h3>
Answer: 10,080</h3>
Explanation:
There are 8 letters so there are 8! = 8*7*6*5*4*3*2*1 = 40,320 permutations of those letters. However, the letters "O" and "L" show up twice each, so we must divide by 2! = 2*1 = 2 for each instance this happens.
So,
(8!)/(2!*2!) = (40,320)/(2*2) = (40,320)/4 = 10,080
is the number of ways to arrange the letters of "football".
The reason we divide by 2 for each instance of a duplicate letter is because we can't tell the difference between the two "O"s or the two "L"s. If there was a way to distinguish between them, then we wouldnt have to divide by 2.