Statistic Quiz

Total frequency

• is the sum of frequences

• is the times of frequences

• is the sum of values

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

Relative frequency in percentage

• is the relative frequency divided by 100

• is the total frequency times 100

• is the relative frequency times 100

33, 25, 42, 25, 31, 37, 46, 29, 38

Find the standard deviation. Round to 2 decimal places.

Which of the following best describes the shape of the distribution?

• SKEWED LEFT

• SKEWED RIGHT

• UNIFORM

• SYMMETRICAL