A market research firm conducts telephone surveys with a 42% historical response rate. What is the probability that in a new sample of 375 telephone numbers, at least 150 individuals will cooperate and respond to the questions

The right answer is "0.7823".

Step-by-step explanation:

Given that,

P = 42%

or,

  = 0.42

n = 375

= 0.4

The z-score will be:

=

By putting the values, we get

=

=

hence,

The probability will be:

⇒ =

                        =

                        =

                        =

the first one, all those points on the line just make a strait line.

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)