Think about it this way:
26 * 19 = ?
(26 + 10) x (26 + 9)
Hope this helps
C. a and c, b and d
mdmcnfnfn
Domain is: -∞, ∞
Range is: 16, -∞
Answer:


Step-by-step explanation:
Given

Number of Girls : 0 ----> 1 -----> 2 ------->3
Number of Families: 112 -> 314 --> 382 ---> 192
Solving (a): At most one girl
From the table, the number of families with at most one girl is: 112 + 314
i.e.
Number of Girls : 0 ----> 1
Number of Families: 112 -> 314
So, we have:


The probability is then calculated as:



Solving (b): More girls
From the table, the number of families with more girl is: 382 + 192
i.e.
Number of Girls : -----> 2 ------->3
Number of Families: --> 382 ---> 192
So, we have:


The probability is then calculated as:



Answer:
550
4 + 4 + 8 + 8 + 10 + 16 + (50 x 10)
Step-by-step explanation: