Thirty percent of all telephones of a certain type are submitted for service while under warranty. of these, 70% can be repaired, whereas the other 30% must be replaced with new units. if a company purchases ten of these telephones, what is the probability that exactly three will end up being replaced under warranty? (round your answer to three decimal places.)

0.2669~0.267

Step-by-step explanation:

Given that Thirty percent of all telephones of a certain type are submitted for service while under warranty.

Let x be the no of units being replaced out of 10 units purchased by a company under warranty

We have X has two outcomes either replaced or not.  Also each unit is independent of the other

P(each unit fails and requires replaement ) = p =0.3

q =0.7

the probability that exactly three will end up being replaced under warranty

=P(X=3)

= ~0.267

where is the shape my dude?

step-by-step explanation:

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.