How many kids would people like to have

How many kids would people like to have? Done by Larysa Tian, Kiril Pall, Yuliia Stefanova, Diana Bakhtyieva and Alona Dubar.

The Aim of the Research. The aim of this research is to find out how many children people prefer to have nowadays.

Raw Data 3 2 2 1 3 4 1 1 1 2 2 3 1 1 2 2 2 3 1 5 1 2 2 3 3 2 1 1 3 2 2 3 3 1 3 4 2 1 2 3 3 3 1 4 2 1 2 3 1 2

Ordered Data. 1 1 1 1 2 2 2 2 2 3 3 3 3 4 4 4 5

Mean. On the average, people prefer to have 2. 16 kids.

Median. Median is the central value. 50/2=25 We need the 25 th value in our data set: So, 50% of the people asked want to have 2 kids.

Mode(tabl) It is the most frequent value. 2 appears to be the most frequent it occurs 17 times.

Quartiles. Q 1 is the 25 th percentile. In this case: So, we are looking for the 13 th value in our data set which is 1

Q 3 is the 75 th percentile. In this case : So, we are looking for the 38 th value in our data set which is 3.

Interquartile range. Q 3 -Q 1=2 We can say that the differentiation of the 50% of the central observation is 2. Range= 5 -1=4

Standard Deviation. This value of Standard Deviation is not high, this means that variation is less higher.

Coefficient of Variation. In probability theory and statistics, the coefficient of variation (CV) is a normalized measure of dispersion of a probability distribution. It is also known as unitized risk or the variation coefficient. The absolute value of the CV is sometimes known as relative standard deviation (RSD), which is expressed as a percentage.

Box Plot. In descriptive statistics, a box plot or boxplot (also known as a box-andwhisker diagram or plot) is a convenient way of graphically depicting groups of numerical data through their five-number summaries: the smallest observation (sample minimum), lower quartile (Q 1), median (Q 2), upper quartile (Q 3), and largest observation (sample maximum).

Grouped Data.

Mean. The average desirable amount of children in family is 2, 64

Median. About 50 % of people want to have more or about 2 children.

Mode. The class highlighted is the modal class and the mid-point of 2, 5 is the mode of the data.

Standard Deviation. The average number of children from the mean is 3, 16.

Pie Chart. more then 1 more then 2 more then 3 more then 4

Conclusion. Analyzing both individual and grouped data sets, we can see that the average amount of children people prefer to have is 2 or 3. ( according to this 50 people)

Thank you for your attention.