a) For x = 27:
z = 27-28/2 = -0.5
For x = 31:
z = 31-38/2 = 1.5
From the normal distribution table, P(27 < x < 31) = P(-0.5 < z < 1.5) = P(z < 1.5) - P(z < -0.5) = 0.9332 - 0.3085 = 62.47%
b) For x > 30.2:
z = 30.2-28/2 = 1.1
From the normal distribution table, P(x > 30.2) = P(z > 1.1) = 1 - P(z > 1.1) = 1 - 0.8643 = 13.57%
Answer:
dont know
Step-by-step explanation:
dont know
Answer:
7
Step-by-step explanation:
(f + g)(n) = f(n) + g(n) = n - 3 + n - 2 = 2n - 5 , thus
(f + g)(6) = 2(6) - 5 = 12 - 5 = 7
10.10 of the answer choices. if u look closely
