Answer:y=7
Step-by-step explanation:x=2+7=8
Answer:
The probability distribution for x:"number of children per family for this income group" is:

Step-by-step explanation:
With the information given we have the relative frequencies of each category.
We know:

Range for boys = 20-8 = 12
Range for girls = 15-3 = 12
Range is same for both boys and girls.
median of boys = 12.5
median for girls = 6.5
Median is greater for the boys.
Hope it helps!
Pretty sure it’s..jk do your class