YOu decide to collect a bunch of canS of Soda and measure the Volume oT Soda in each can. Let X= the number of mL oT Soda in6 can. What type of variable is X? A X is a continuous random variable B) x is a discrete random variable X is constant X is not a random variable
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- A psychologist found a study which claiming that 32% of patients who visit a psychologist have symptoms of anxiety. This psychologist had 44 patients visit. Let x = the number of patients that had symptoms of anxiety. (a) The random variable is which of the following? O the number of psychologists O the number of patients who visited the psychologist the number of patients who had symptoms of anxiety O the number of patients without symptoms of anxiety (b) How many total patients did the psychologist have visit?dont answer by pen paperA random variable which can take any value in an interval is called a a. continuous random variable. O b. discrete random variable. O c. statistic. O d. outcome.
- Which one of these variables is a continuous random variable? Oa. The number of tattoos a randomly selected person has. Ob. The number of correct guesses on a multiple choice test. The time it takes a randomly selected student to complete an exam. Od. The number of women taller than 68 inches in a random sample of 5 women O . None of theseThe accompanying table describes results from groups of 10 births from 10 different sets of parents. The random variable x represents the number of girls among 10 children. Use the range rule of thumb to determine whether 1 girl in 10 births is a significantly low number of girls. Click the icon to view the table. Use the range rule of thumb to identify a range of values that are not significant. The maximum value in this range is girls. (Round to one decimal place as needed.) *** Probability Distribution for x Number of Girls x 0 1 2 3 4 5 6 7 8 9 10 P(x) 0.002 0.012 0.043 0.115 0.203 0.234 0.198 0.115 0.038 0.011 0.029 D - XAnswer quickly!
- ANSWERS ALL PARTS A,B,C A) Roll a dice, X=the number obtained. Calculate E(X), Var(X). Use two expressions to calculate variance. B) Two fair dice are tossed, and the face on each die is observed. Y=sum of the numbers obtained in 2 rolls of a dice. Calculate E(Y), Var(Y). C) Roll the dice 3 times, Z=sum of the numbers obtained in 3 rolls of a dice. Calculate E(Z), Var(Z) from the result of part a and b.determine whether the random variable x is discrete or continuous. let x represent the populations of the 50 U.S. statesI will be glad if the answer comes quickly