SA 2nd chapter

Question 1

what is Desciptive

Answer 1

it is branch of statistics

Question 2

why descriptive is helpful

Answer 2

analyzing patterns , trends and relation with a dataset without making predicators

Question 3

how descriptive present data

Answer 3

it use graph of present data clearly

Question 4

what does it do Descriptive

Answer 4

help to summarize large database with the help of mean mode median

Question 5

what does it is helpful for

Answer 5

decision making

Question 6

Grouped data

Answer 6

Data can be define as group of information

Question 7

what does grouped data include

Answer 7

qualitative and quantitative variable or set of variable

Question 8

types of data

Answer 8

grouped data and ungrouped data

Question 9

what is ungrouped data

Answer 9

first gather and data is in raw

Question 10

what is grouped data

Answer 10

oraganize in classes , data is no longer raw

Question 11

grouped data is orgainzed into?

Answer 11

classes or intervals

Question 12

how grouped is represent

Answer 12

often represent using histogram ar graphs frequency talbe

Question 13

disadvantage of grouped data

Answer 13

reduce accurance and improve readability

Question 14

step to create FDT

Answer 14

1. Collect the Data
2. Determine Class intervals
3. Tally the frequncy
4. Organize in a Table

Question 15

frequency Distribution Table categorized for?

Answer 15

both numerical and variables

Question 16

contineous variable should be used with?

Answer 16

class intervels