Question
According to the National Highway Traffic Institute, seat belts are worn by 70% of California car passengers. If 4 car passengers are chosen at random,
According to the National Highway Traffic Institute, seat belts are worn by 70% of California car passengers. If 4 car passengers are chosen at random, the table below gives the probability that some or all of these people are wearing seatbelt s. Complete the table: Define the random variable of interest: X = # of Hint: find P(4) first, then use subtraction for P(3) Circle True or False on each question below. If False, restate the sentence on the line provided & correct the error. (a) True or False: This is a probability distribution. correction: (b) True or False: The histogram of this distribution is skewed right. correction: (c) True or False: P( x< 2 ) = 0.349 correction: (d) True or False: The probability at least one passenger wears a seatbelt is 0.076 correction: (e) True or False: The mean value for x is 2.0 correction: (f) True or False: The random variable is discrete. correction:
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