Question

Among

33

​-

to

38

​-year-olds,

31

​%

say they have

called a talk show

while under the influence of

peer pressure

.

Suppose

seven

33

​-

to

38

​-year-olds

are selected at random.

​(a) What is the probability that at least one has not

called a talk show

while under the influence of

peer pressure

​?

​(b) What is the probability that at least one has

called nbsp

a talk showwhile under the influence of

peer pressure

​?

​(a) The probability that at least one has not

called a talk show

while under the influence of  

peer pressure

is

nothing

.

​(Round to four decimal places as​ needed.)

​(b) The probability that at least one of the

seven

randomly selected adults has

called a talk show

while under the influence of

peer pressure

is

nothing

.

​(Round to four decimal places as​ needed.)

Answer 1

a talk show Ginen, while 31% say they have called under the influence of feed Pressure among rears-olds. 33 to 38 We 7 at take x be the rovi talk show out random. for the no. of Persons called 7. Х- Bin (7, 0.31) be the for the no & Y not r.v. talk show Bin 7 1-0.31 a of persons le of 7. 0.69) Pey=1} 7 E 92 1cy (0.699 (0.3179 0.9997 7 162 PE**) Z 10x (0.31) Co. 69) 7-20 2 0.9255 Bright