Answer:
a) 
b) 
c) 
Step-by-step explanation:
For this case we have the following probability distribution function:
X P(X)
1 0.04
2 0.12
3 0.18
4 0.24
5 0.13
6 0.15
7 0.10
8 0.04
___________
Total 1.00
Part a
For this case we want this probability:

Part b
What is the probability that there are 5 or more members in a typical household in India? (Round your answer to 2 decimal places.)
For this case we want this probability:

Part c
What is the probability that the number of members in a typical household in India is strictly between 2 and 5? (Round your answer to 2 decimal places.)
We want this probability:

Answer:
3x+7
Step-by-step explanation:
(2x+3)+(x+4)
2x+3+x+4
3x+7
0.078 miles she runs per minute.
Let, the number of students = x
Number of teachers = y = 6
Equation would be: 6x + 8.5y = 250
6x + 8.5(6) = 250
6x + 51 = 250
6x = 250 - 51
x = 199 / 6
x = 33.16
Students can't be in fraction, so after rounding-off, it will be 33
In short, Your Answer would be 33 Students
Hope this helps!