The Gallup Poll reported that 43% of Americans are fans of professional baseball. If 7 people are selected at random, find the probability that they all are fans of professional baseball. Please round the final answer to 2 or 3 decimal places

3.01

Step-by-step explanation:

43% of 7 is approx 3

it is true

step-by-step explanation:

all the combinations add up i used   calculator

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is