statistic Quiz

Frequency 

• is the number of repetition of each character of the value

• is the number of repetition of each value of the character

• is the number of same of each value of the character

Total frequency

• is the sum of frequences

• is the times of frequences

• is the sum of values

Relative frequency

• $f_i=\frac{n_i}{N}$

• $n_i=\frac{f_i}{N}$

• $f_i=\frac{N}{n_i}$

Relative frequency in percentage

• is the relative frequency divided by 100

• is the total frequency times 100

• is the relative frequency times 100

The last value of increasing cumulative frequency well:

• be equal to relative frequency

• be equal to the total of all observation

• be equal to the total values

what is the frequency of age 30?

• 8

• 11

• 14

what is the total frequency?

• 25

• 80

• 100

what is the relative frequency of age 20 ?

• 0.05

• 0.5

• 5

what is the relative frequency of age 50 ?

• 0.025

• 0.25

• 25

what is the % relative frequency of age 35 ?

• 0.14

• 1.4

• 14