Question

tails M y y? This question is worth 6 points. TL 115) 50 times, then 1 are mes, conducted. " The ratio will be very close to Circe the 5) You own a gym and your membership sales seem nationally 40% of adults use gym facilities on ar national average, you conduct a quick surv gym regularly. What is the binomial prob routine basis? This question is worth 6 points. only 2 options with the same probability CR survey outside your facility. You as De lower than you feel they should be. You read that ne basis. In order to see if your area is less than this facility. You ask 7 random people if they use a less than 60% of those surveyed use a gym on a P2.40 904 = 90.4% 17 TIL outcomes P -21 1.290 194

stumped on #5

Answer 1

here this is binomial with parameter n=7 and p=0.4

P(less than 60% use a gym as a routine basis )=P(less than 7*0.6 =4.2 use) =P(X<=4)

=P(X=0)+P(X=1)+P(X=2)+P(X=3)+P(X=4)

=∑x=04 (7Cx)0.4x(1−0.4)(n-x)    = 0.0280+0.1306+0.2613+0.2903+0.1935 =

0.9037