The resistance for resistors of a certain type is a random variable Xhaving the normal distribution with mean 9 ohms and standard devia-tion 0.4 ohms. A resistor is acceptable if its resistance is between 8.6and 9.8 ohms.(a) What is the probability that a randomly chosen resistor is accept-able

And using the normal standard distirbution or excel we got:

Step-by-step explanation:

Let X the random variable that represent the resistance for resistors of a population, and for this case we know the distribution for X is given by:

Where and

We are interested on this probability

And the z score formula is given by:

Using this formula we got:

And using the normal standard distirbution or excel we got:

c

step-by-step explanation:

vwhat effect does the word head have on the meaning of this passage?

a. it demonstrates how intelligent he was.

b. it shows he was a favorite of the teachers.

c. it indicates he would be a good preacher.

d. it reveals how self-important he was.

how does the choice of the word head contribute to the passage’s tone?

a. it offers a sense of entitlement.

step-by-step explanation: