st-scripts: statistics/questions.rst@2e49b1b72996 (annotated)

321 2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	1	Objective Questions
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	2	-------------------
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	3
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	4	.. A mininum of 8 questions here (along with answers)
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	5
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	6	1. What is the function for calculating sum of a list?
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	7
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	8	sum
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	9
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	10	2. Calcutate the mean of the given list?
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	11
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	12	student_marks=[74,78,56,87,91,82]
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	13
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	14	mean(student_marks)
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	15
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	16
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	17	3. Given a two dimensional list,::
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	18	two_dimensional_list=[[3,5,8,2,1],[4,3,6,2,1]]
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	19
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	20	how do we calculate the mean of each row?
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	21
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	22
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	23	mean(two_dimensinal_list,1)
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	24
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	25	4. What is the function for calculating standard deviation of a list?
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	26
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	27	std
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	28
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	29	5. Calcutate the median of the given list?
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	30
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	31	student_marks=[74,78,56,87,91,82]
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	32
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	33	median(age_list)
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	34
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	35	6. How do you calculate median along the columns of two dimensional array?
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	36
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	37	median(two_dimensional_list,0)
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	38
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	39
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	40	7. What is the name of the function to load text from an external file?
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	41
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	42	loadtxt
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	43
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	44	8. I have a file with 6 columns but I wish to load only text in column 2,3,4,5. How do I specify that?
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	45
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	46	Using the parameter usecols=(2,3,4,5)
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	47
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	48	Larger Questions
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	49	----------------
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	50
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	51	.. A minimum of 2 questions here (along with answers)
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	52
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	53	1. Question 1
2e49b1b72996 adding questions for all other LO needs to be cleaned amit parents: diff changeset	54	2. Question 2

author	amit
	Wed, 13 Oct 2010 17:26:45 +0530
changeset 321	2e49b1b72996
child 349	9ced58c5c3b6
permissions	-rw-r--r--