Question

Statistics A Unit 7: Probsbllity sttions 4. A bonus activity in a popular video game allows the gamer to choose from several boxes to acquire a rare and useful item. The probability of success is 0.2. With 35 attempts, find the standard deviation 02.4 07.0 5.6 00.2 5. A coin is tossed 140 times. The probability of getting tails is p 0.500. Would a result of 55 poi heads out of the 140 trials be considered usual or unusual? Why? Unusual, because the result is less than the maximum usual value. Usual, because the result is between the minimum and maximum usual values Unusual, because the result is less than the minimum usual value Unusual, because the result is more than the maximum usual value. 6. In a given binomial distribution, there are 625 trials, and the probability of success is p 0.29 point) hat is the variance ? 181 3 11 3 - 128.7 งา F8 2 4 5 6

Answer 1