1.      TEST


1)        Complete the values in the table. The data represent the number of children in 33
families.

                                        Number of children

                                             Frequency

                                        Relative frequency

                                       Cumulative frequency

                                   Relative cumulative frequency

                                                 0

                                                 6




                                                 1

                                                 7




                                                 2

                                                14




                                                 3

                                                 5




                                                 4






2) Based on the information from the first example, answer the following questions:

a) How many families have 4 children?

b) What percentage of the interviewed families have 2 children?

c) How many families have less than 2 children?

d) What percentage of the surveyed families have no more than 2 children?


3) Select quantitative characters from the given statistical characters:

sex; education; number of cars; wages; age.

4) Data represent respondents' education. Specify the mode and median of the file.

B – basic education; S– secondary education; U – higher education

B;  S; U; B; S; U; B; S; S

Complete the frequency table.

                                             Education

                                             Frequency

                                        Relative frequency

                                       Cumulative frequency

                                   Relative cumulative frequency

                                                 B





                                                 S





                                                 U






5) Answer the questions:

a) How many respondents had basic education?

b) What percentage of respondents had a secondary education?

c) How many respondents had a secondary education at most?

d) What percentage of respondents had a secondary education at most?