The relative frequency histogram shows the distribution of a

The relative frequency histogram shows the distribution of average life expectancy at birth for 223 countries. [Source: U.S. Census Bureau, International Database.] The histogram classes are from 30-39, 40-49, etc. Which of the following statements are supported by the histogram?

Solution

A histogram must be provided along with the question. However, the method of checking each option is explained:

Calculate the number of countries with life expectancy less than 60 years

So, if ( Rel FREQ(30-39) + Rel FREQ(40-49) + Rel FREQ(50-59) ] < 0.20 then option A is correct else not

b) If Rel FREQ ( 80-89) + Rel FREQ (90-99) . . . < 0.10 , only then option B is true

c) If Rel FREQ ( 70 - 79) > 0.50 only then statement C is true. Else not.

thus, check for each options and then tick the valid ones.

Hope this helps. Ask if you have doubts.