There are three types of users (mobile phone, tablet, or computer) that attempt to access an online store. the probability of seeing a mobile phone (m) is 1/2, the probability of seeing a tablet (t) is 1/4, and the probability of seeing a computer (c) is 1/4. each user either request an audio (a) file or a video (v) file. smartphone users request audio with probability (w. p.) 1/2, tablet users request audio w. p. 2/5, and computer users request audio w. p. 3/10. enter your answers in decimal format using the 3 most significant decimal places (example: 0.330)