Question

#8 This is a HUGE portion of my final exam so please take your time.  I’ll rate it after for you!:) Thanks so much!

Based on data from a car bumper sticker study, when a car is randomly selected, the number of bumper stickers and the corresponding probabilities are as shown below. Complete parts (a) through (d). EEB Click the icon to view the data table. a. Does the given information describe a probability distribution? O No O Yes b. Assuming that a probability distribution is described, find its mean and standard deviation The mean is (Round to the nearest tenth as needed.) The standard deviation is (Round to the nearest tenth as needed.) c. Use the range rule of thumb to identify the range of values for usual numbers of bumper stickers. The maximum usual The minimum usual value is (Round to the nearest tenth as needed.) d. Is it unusual for a car to have more than one bumper sticker? Explain. value is Round to the nearest tenth as needed) O A. No, because the probability of more than 1 bumper sticker is 0.108, which is greater than 0.05. O B. No, because the probability of having 1 bumper sticker is 0.107, which is greater than 0.05 O C. Yes, because the probabilities for random variable x from 2 to 9 are all less than 0.05.

Answer 1

o. A.See s : opl:m(z) | @fsles 1C0 00 &(o.ooc) +900003) : 8.4 al's caleolode + 81(o.ooe).t.(o.oo 3) : 73.682 8.5-2C-2) : 8.s 201.2 to.9