Calculate the mean, median, mode and the variance of a sample 15 10 12 12 13 Don't 20 40 A company is conducting a telephone survey of randomly selected individuals to get their overall impressions of the past decade Response Positive Negative Neither Total Know Number 60 100 220 What is the probability that the next person surveyed has the following: 1- positive impressions 2- negative impressions 3- positive or negative impression P(A) P(B) P(A or B) Are the positive impressions and the negative impressions, Mutually Exclusive? and why? You select a card from a standard deck. Find the probability of the following events. 1. Event A: Selecting three cards from Diamonds. 2. Event B: Selecting a king of Clubs, Standard Dede of laying Cards Heart Diamond Sales Cuis A A. A. KK K. 0 0 0 0. 1 1 . 10 10 10 UTI 7 7. 7. 3. Event C: selecting three cards from Spades then four cards from Diamonds then one card from hearts