Answer:
Step-by-step explanation:
-This is a binomial probability distribution problem.
-Given that p=0.86 and n=11, the sample variance can be calculated using the formula:
#We substitute the given parameters in the formula to solve for variance:
Hence, the sample variance is 1.32
3
a=2
b=6
Assuming a uniform distribution and that a ≤ x ≤ b, if f(x) = 1/4, then:
If P(X > 4) = 1/2, then:
The values for a and b are, respectively, 2 and 6.