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Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those
Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. Drive-thru Restaurant A B C D Order Accurate 318 265 233 139 Order Not Accurate 36 56 34 18 If two orders are selected, find the probability that they are both accurate. Complete parts (a) and (b) below. . . . a. Assume that the selections are made with replacement. Are the events independent? The probability is . The events independent. (Do not round until the final answer. Round to four decimal places as needed.) b. Assume that the selections are made without replacement. Are the events independent? The probability is . The events independent. (Do not round until the final answe cimal places as needed.) are are notFive males with an Xlinked genetic disorder have one child each. The random variable x is the number of children among the ve who inherit the Xlinked genetic disorder. Determine whether a probability distribution is given. If a probability distribution is given, nd its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satised. Does the table show a probability distribution? Select all that apply. E] A. Yes, the table shows a probability distribution. E] B. No, the sum of all the probabilities is not equal to 1. E] C. No, the random variable x is categorical instead of numerical. E] D. No, the random variable x's number values are not associated with probabilities. E] E. No, not every probability is between 0 and 1 inclusive. Find the mean of the random variable x. Select the correct choice below and, if necessary, ll in the answer box to complete your choice. 0 A- p: D child(ren) (Round to one decimal place as needed.) B. The table does not show a probability distribution. Find the standard deviation of the random variable x. Select the correct choice below and, if necessary, ll in the answer box to complete your choice. A- o = D child(ren) (Round to one decimal place as needed.) 0 B. The table does not show a probability distribution
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