Answer:
0.262144 = 26.2% of getting all the 6 questions correctly.
Step-by-step explanation:
This is a binomial distribution problem
Binomial distribution function is represented by
P(X = x) = ⁿCₓ pˣ qⁿ⁻ˣ
n = total number of sample spaces = 6 multiple choice questions
x = Number of successes required = 6 (we want to get it all right.
p = probability of success = 0.8 (80% chance of getting any individual question right; 0.8 probability of getting each question correctly)
q = probability of failure = 1 - 0.8 = 0.2
P(X = 6) = ⁶C₆ (0.8)⁶ (0.2)⁶⁻⁶ = 1(0.262144)(1) = 0.262144
Answer:
Step-by-step explanation:
Suppose
1)
2) By the Exponents rule, the power of a power is the same as the product of the exponents
So:
Answer: B) y-4=6(x-1)
Substitute the point into each equation
A: y-4=6(x+1)
4-4=6(1+1)
4-4=6+6
0=12
This is false so it is not the answer
B: y-4=6(x-1)
4-4=6(1-1)
4-4=6-6
0=0
This is true so this is the answer, but I will continue solving just to check
C: y+4=6(x-1)
4+4=6(1-1)
4+4=6-6
8=0
This is false so it is not the answer
D: y+4=6(x+1)
4+4=6(1+1)
4+4=6+6
8=12
This is not true so it is not the answer
Your answer becomes b, the only true equation! Hope this helps comment below for more questions :)
First you would find the difference of 210 and 46, so 210-46=164.
Then you will divide the solution by the total number of students, so
164 divided by 210.
164/210= about .780 or 78%