Working attached below:
Hope this helps! Any questions let me know :)
Total -
Right-handed: 214! Left-handed: 22!
Total of students: 236 students
I hope this helped! :D
Step-by-step explanation:
9th Grade: Right Handed: 111! Left Handed: 10!
10 Grade: Right Handed: 103! Left Handed: 22!
Add left handed for both grades. Add right handed for both grades. And add total numbers.
I hope this helped :D
B is the answer to ur question
In Binomial distribution, the expected value or mean is given by,
E(X) = np
where, p = probability of success and n=number of sample size.
E(X) = 100×0.4 = 40
