Free Binomial random variables Practice Problems • Learn To Be

A company produces processing chips for cell phones. At one of its large factories,

2\%

of the chips produced are defective in some way. An inspector conducting a quality check randomly selects and tests

500

chips.

What are the mean and standard deviation of the number of defective processing chips?

Choose 1 answer:

A
$\mu=0.02,\quad\sigma=\sqrt{(500)(0.02)}$
B
$\mu=0.02, \quad\sigma=\sqrt{(500)(0.02)(0.98)}$
C
$\mu=(500)(0.02), \quad\sigma=\sqrt{(500)(0.02)}$
D
$\mu=(500)(0.02), \quad\sigma=\sqrt{(0.02)(0.98)}$
E
$\mu=(500)(0.02), \quad\sigma=\sqrt{(500)(0.02)(0.98)}$

Binomial random variables