a) How many distinct four-digit numbers canbe performed from the following integ

Question

a)     How many distinct four-digit numbers canbe performed from the following integers 1, 2, 3,4,5,6 if eachinteger is used only once?

b)     What would be the shape and name of thefrequency distribution if

a)     Describe the situation in which twovariables are perfect positively correlated?

b)     The cost of output at a factory isthought to depend on the number of units produced. Data have beencollected for the number of units produced each month in the lastsix months, and the associated costs, as follows;

Output
(‘000s of units) X

Cost
($’000) Y

2

9

3

11

1

7

4

13

3

11

5

15

                   Calculate the correlation coefficient and comment on yourresult.

Output
(‘000s of units) X

Cost
($’000) Y

2

9

3

11

1

7

4

13

3

11

5

15

Explanation / Answer

You're only supposed to ask one question per post, so I'll answerthe first two. a) 6*5*4*3 = 360 b   mean=median=mode: symmetric      mean>median>mode: right-skewed

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