Question

Question 8 of 9 (1 point) Attempt 1 of 2 View question in a popup 5.2 Section Exercise 27. Take another guess: A student takes a multiple-choice test that has 11 questions. Each question has four choices. The student guesses randomly at each answer. Round the answers to three decimal places. Part 1 of 2 (a) Find P (4). P(4)= 0 Part 2 of 2 (b) Find P (More than 3). P(More than 3) - 1 Save For Later Submit Assignment Check Answer

Answer 1

multiple choice test that has " questions each question has four choices The student guesses randomly at each answer pl guessing the answer) = 4 Los corrent p(guessing answer is wrong = 3/4 binomial nadstribution mall, P=2 9=3 @.2017 - TP var) = "cy prawna R(Y) = "(, ()(4) (+5%+)* -4 Como 47! y! (m.)? 11X10 X9x8x7! (1x3x2r.) *** (1) *03) 0 9 P(1) = 0,172) Pr more than 3) - P147+8157 * - - IP(1) - [P(x=-) +((x+1) +P(x-1) +P(x=»)] - (":64% (**e, 65) (+)"+ "6437€)" +", (+)* C) 0,2581 0.0422 35 + 0.15486 + 0.7581 p l- Scante A l ffmore than 32 70.28677