The following table shows the number of computer problems that are encountered daily in an office for 260 days. Which of the following is correct for a good fit test to be performed? (The number of...

The following table shows the number of computer problems that are encountered daily in an office for 260 days. Which of the following is correct for a good fit test to be performed?

(The number of groups remaining after merges will be = 5.)
number of computer problems  (x)    0     1      2       3      4       5
number of days      (ni)                       77   90   55      30   5       3

A)2 parameters should be calculated: average and variance.

B)The calculated parameter value is = 1.25.

C)The degree of freedom is = 4.

D)Its suitability for binomial distribution is tested.