In answering a question on a multiple choice test a student either knows the answer or guesses. ... VIDEO
In answering a question on a multiple choice test a student either knows the answer or guesses. Let \( 3 / 4 \) be the probability that he knows the answer and \( 1 / 4 \) be the probability that he guesses. Assuming that a student who guesses at the answer will be correct with probability \( 1 / 4 \). What is the probability that a student knows the answer given that he answered it correctly?https://bit.ly/YTAI_PWAP https://www.pw.live
Other Videos By PW Solutions 2023-06-09 Fifteen coupons are numbered \( 1,2,3, \ldots, 15 \). Seven coupons are selected at random one a... 2023-06-09 If \( A \) and \( B \) are two independent events such that \( P(A)=\frac{1}{3} \) and \( P(B)=\... 2023-06-09 A gardener has a supply of fertilizer of type I which consists of \( 10 \% \) nitrogen and \( 6 ... 2023-06-09 The probability that atleast one of the events \( A \) and \( B \) happens is 0.6 . If probabili... 2023-06-09 Two events \( \mathrm{A} \) and \( \mathrm{B} \) have probabilities 0.25 and 0.50 respectively. ... 2023-06-09 A bag contains 3 red and 3 white balls. Two balls are drawn one by one. The probability that the... 2023-06-09 A firm manufactures two products, each of which must be processed through two departments, 1 and... 2023-06-09 There are two boxes, namely, box-I and box-II. Box-I contains 3 red and 6 black balls. Box-II co... 2023-06-09 A furniture manufacturing company plans to make two products : chairs and tables. From its avail... 2023-06-09 One kind of cake requires \( 200 \mathrm{~g} \) of flour and \( 25 \mathrm{~g} \) of fat, anothe... 2023-06-09 In answering a question on a multiple choice test a student either knows the answer or guesses. ... 2023-06-09 A farmer mixes two brands \( P \) and \( Q \) of cattle feed. Brand \( P \), costing. 250 per ba... 2023-06-09 A company manufactures two type of novelty Souvenirs made of plywood. Souvenirs of type \( A \) ... 2023-06-09 Le \( P_{1} \) and \( P_{2} \) be two planes given by
\[
\begin{array}{l}
P_{1}: 10 x+15 y+12 z-... 2023-06-09 For the following feasible region, the linear constraints (except \( x \geq 0 \) and \( y \geq 0... 2023-06-09 Every gram of wheat provides \( 0.1 \mathrm{~g} \) of proteins and \( 0.25 \mathrm{~g} \) of car... 2023-06-09 If a young man drives his scooter at a speed of \( 25 \mathrm{~km} / \mathrm{hr} \), he has to s... 2023-06-09 The corner points of the feasible region determined by the following system of linear inequaliti... 2023-06-09 A manufacturer of patent medicines is preparing a production plan on medicines \( A \) and \( B ... 2023-06-09 A dealer wishes to purchase a number of fans and sewing machines. He has only ₹ 5760 to invest a... 2023-06-09 A non-zero vector \( \vec{a} \) is parallel to the line of intersection of the plane determined ...
0