In a very large shipment of electronic devices, 5% are defective. Let X represent the number of defective devices in a random sample of 20 devices from this shipment. Which of the following expressions gives P(X>2)? (A) (0.05)²(0.95) 18 20 (B)()(0.05)* (0.95)20-* 20 (c)()(0.05)*(0.95)20-* k=3 20 (D)()(0.95)* (0.05)20-* k=3 (E) 1- 20 0.95)20-k -Σ(x) (0.05)* (0.95)² k=3
In a very large shipment of electronic devices, 5% are defective. Let X represent the number of defective devices in a random sample of 20 devices from this shipment. Which of the following expressions gives P(X>2)? (A) (0.05)²(0.95) 18 20 (B)()(0.05)* (0.95)20-* 20 (c)()(0.05)*(0.95)20-* k=3 20 (D)()(0.95)* (0.05)20-* k=3 (E) 1- 20 0.95)20-k -Σ(x) (0.05)* (0.95)² k=3
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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why the correct answer is letter C?
Transcribed Image Text:In a very large shipment of electronic devices, 5% are defective. Let X represent the number of
defective devices in a random sample of 20 devices from this shipment. Which of the following
expressions gives P(X>2)?
(A) (0.05)²(0.95) 18
20
(B)()(0.05)* (0.95)20-*
20
(c)()(0.05)*(0.95)20-*
k=3
20
(D)()(0.95)* (0.05)20-*
k=3
(E) 1-
20
0.95)20-k
-Σ(x) (0.05)* (0.95)²
k=3
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