Question

Question 3 1 pts Suppose X is a normal random variable with a mean equal to 50 and a standard deviation equal to 5. Find the value of: P(46 < X < 58) Your answer should include four decimal places. Question 4 1 pts Section 8.6: A basketball player has a 75% chance of making a free throw. (Assume that the throws are independent of each other.) What is the probability of her making 100 or more free throws in 120 trails? Your answer should have four decimal places.

Answer 1

p co? 100)= P(Z >2,0025) 20.0220 033 M=50 6=5 P(46<3(<58)= ? 2 = X-4 :: P(46 (00458) p(467.50 <z + sensor) = P(-0.8<2<1.0) = P(Z <1.6) - P(22-0.6) = 0.9452-0.2119 0.7333 9=1-=0.25 :: P=0,45 , P( making free throws=0.75 na170 P(x>100) = ? e=n.p = २०४0.15 = 90 o= unpa --V 120X0.75X0.25 74.7434 (": continuity conection) ploc>100)= ploc>99.5) 2. 3-4 = 99.5-90 4.7434 = 2.0028