Applications | RapidIdentity x _ Quizzes 2 * *Dashboard X + X - > C A learn.vccs.edu/courses/500264/external_tools/retrieve?display=full_width&url=https%3A%2F%2Fvccs.quiz-Iti-iad-prod.instructure.com%2FIti%2Flaunch%3Fmodule_session%... [ * @ G Return Submit Lesson IZ Homework O Overview This is the homework assignment for Lesson 12. It should be completed after you read the lesson notes and view any applicable videos. Objectives 13. Distinguish between discrete and continuous random variables. 39. Calculate descriptive and inferential statistics using an appropriate statistical software package. 1 Instructions 2 You do not need StatCrunch to complete this homework set. Be sure to follow all rounding instructions exactly. Questions? 4 If you have questions about this homework assignment, please post them in the Week 5 Discussion Forum. 1 1 point The table below lists probabilities for the corresponding number of girls in three live births. What is the random variable, what are its possible values, and are its values all numerical? Probability Distribution X P(x) 0 .125 1 0.375 2 0.375 3 0.125 O The random variable is x, which is the number of girls in three live births. The possible values of x are 0, 1, 2, and 3. The values of the random variable x are numerical. O The random variable is P(x), which is the probability of x number of girls in three live births. The possible values of P(x) are 0.125 and 0.375. The values of the random variable P(x) are numerical. The table does not represent a valid probability distribution. O The random variable is P(x), which is the probability of x number of girls in three live births. The possible values of P(x) are 0.125 and 0.375. The values of the random variable P(x) are not numerical. O The random variable is x, which is the number of girls in three live births. The possible values of x are 0, 1, 2, and 3. The values of the random variable x are not numerical. Type here to search O E 86.F Sunny 3:22 PM 9/20/2022Applications | RapidIdentity x _ Quizzes 2 * *Dashboard X + X C A learn.vccs.edu/courses/500264/external_tools/retrieve?display=full_width&url=https%3A%2F%2Fvccs.quiz-Iti-iad-prod.instructure.com%2FIti%2Flaunch%3Fmodule_session%... [ # @ G Return Submit 2 1.5 points Five males with an X-linked genetic disorder have one child each. The random variable x is the number of children among the five who inherit the X-linked genetic disorder. The table below gives the probability distribution for x, the number of children who inherit the disorder. Find the distribution's mean and standard deviation. (Round your answers to one decimal place. Probability Distribution P(x) 0.027 898 0 0.151 2 0.32 3 0.322 N 4 0.151 3 0.027 4 The mean ! = type your answer.. . The standard deviation o = type your answer. 3 1.5 points Certain types of beta-blockers have been found to increase the likelihood of sleepwalking in cardiac patients. The table below contains the probability that x patients who were prescribed a certain type of beta blocker (out of a random sample of five) will report they have trouble with sleepwalking. Find the distribution's mean and standard deviation. (Round your answers to one decimal place). Probability Distribution X P(x) 0 0.178 1 0.352 2 0.301 3 0.134 4 0.033 5 0.002 The mean u = type your answer. The standard deviation o = type your answer.. Type here to search O 86"F Sunny ~ 9 0 ( () 3:23 PM 9/20/2022Applications | RapidIdentity X 0 Quizzes 2 * *Dashboard X + X C A learn.vccs.edu/courses/500264/external_tools/retrieve?display=full_width&url=https%3A%2F%2Fvccs.quiz-Iti-iad-prod.instructure.com%2FIti%2Flaunch%3Fmodule_session%... [ * [ @ G Return Submit 0.35 0.301 3 0.134 4 0.033 5 0.002 1 The mean ! = type your answer. The standard deviation o = type your answer.. 2 3 4 1 point The following table describes the results of roadworthiness tests of Ford Focus automobiles that are seven ore more years old (based on data from the U.S. Department of 4 Transportation). The random variable x represents the number of cars that fail the roadworthiness test out of a random sample of six. Use the probability method to determine which values of x are significantly high. Assume the threshold for significance is 0.05. Enter your answer as an integer. Probability Distribution X P(x) 0.377 1 0.399 2 0.176 3 0.041 4 0.005 5 0.000 0.000 Out of a random sample of six cars, type your answer... or more failures would be a significantly high number. Submit Type here to search 86"F Sunny ~ 9 0 ( 4) 3:23 PM 9/20/2022