Read the Passage given below and answer the questions:
Most demographic concepts are expressed as rates or ratios – they involve two numbers. One of these numbers is the particular statistic that has been calculated for a specific geographical-administrative unit; the other number provides a standard for comparison. For example, the birth rate is the total number of live births in a particular area (an entire country, a state, a district or other territorial unit) during a specified period (usually a year) divided by the total population of that area in thousands. In other words, the birth rate is the number of live births per 1000 population. The death rate is a similar statistic, expressed as the number of deaths in a given area during a given time per 1000 population. These statistics depend on the reporting of births and deaths by the families in which they occur.

Which of the following conclusions necessarily follows if a region records a sex ratio of 950?

There are 950 females for every 1000 males.

The correct answer is Option 1: There are 950 females for every 1000 males.

Sex ratio is defined as the number of females per 1000 males. Therefore, a sex ratio of 950 directly means that there are 950 females for every 1000 males.