Subject: Probability and statistics

***

Activity 6. Answer the following problems. Show your complete solution. 1. A box contains the letters A, E, U. G, R, T, F and L. Supposed Resty selects a letter from the box and then selects another letter from the box without returning the first selected letter. What is the probability that Resty selects a vowel first and followed by a consonant? 2. An urn contains eight red marbles and three white marbles. Jadenin picks a marble, then returns it and pick another marble. Find the probability that the first picked marble is red and the second marble is white,DATE: ACTIVITY Suppose 2 coins are tossed. Let x be the random variable representing the number OF tails that occur. construct the histogram of x.( EXAMPLE 2 ) Suppose 3 cellphones are tested at random. let D be the defective and N be For non - defective. Let Y-be the random variable representing the defective cellphones. construct the histogram on the number OF defective cellphones represented by variable . S = E DDD , DDN , DNN, NDD, NND , NDN , DND , NNN 3 Y = 801 1, 2, 3 3 Discrete Distribution or Probability Mass Function Number OF defective cellphones (Y ) 0 2 3 3/8 Probability OF Y 12.5% 37.5% 37-5%1 12.5%Histogram of Probability destribution of discrete random Variable souder off to of lidodont 51 mobno? Probability 2 3 Number OF Defective cellphones