44)
Solution :
P(4 < x < 14) = P[(4 - 8)/ 3) < (x -
) /
<
(14 - 8) / 3) ]
= P(-1.33 < z < 2)
= P(z < 2) - P(z < -1.33)
= 0.9772 - 0.0918
= 0.8854
44. + -/1.81 points IllowskyintroStat1 6.PR.054. Find the probability that x is between four and 14....
44. + -/1.81 points IllowskyintroStat1 6.PR.054. Find the probability that x is between four and 14. (Round your answer to four decimal places.) XN(8,3) Submit Answer view Previous Question Question 44 of 55 l
33. -/1.81 points IllowskyIntroStat1 6.HW.071. The length of time it takes to find a parking space at 9 A.M. follows a normal distribution with a mean of 6 minutes and a standard deviation of 2 minutes. Find the probability that it takes at least 8 minutes to find a parking space. (Round your answer to four decimal places.) Submit Answer
23. 0/1.81 points Previous Answers IllowskyintroStat1 4.PR.042 GMy Notes Ask Your Teacher The Higher Education Research Institute at UCLA collected data from 203,967 incoming first-time, full-ime freshmen from 270 four-year colleges and universities in the U.S. 71.7 % of those students replied that, yes, they beleve that same-sex couples should have the right to legal marital status. Suppose that you andomly pick six first-time, full-time freshmen from the survey. You are interested in the number that beleves that same-sex couples...
Score. 51. -1.81 points IllowskyintroStat1 4.HW.080. My Notes Ask Your Teache A university has 14 statistics classes scheduled for its Summer 2013 term. One class has space avalable for 30 students, eight classes have space for 50 students, one class has space for 80 students, and four classes have space for 100 students (a) What is the average class size assuming each class is filled to capacity? (Enter youur answer as a whole number ) students (b) Space is available...
24. -1.81 points IllowskyintroStat1 4.PR.044 My Notes Ask Your Teache The Higher Education Research Institute at UCLA collected data from 203,967 incoming first-time, full-time freshmen from 270 four-year colleges and universities in the U.S. 71.4 % of those students replied that, yes, they believe that same-sex couples should have the right to legal marital status. Suppose that you randomly pick elght first-time, full-time freshmen from the survey. You are interested in the number that believes that same-sex couples should have...
24. -/1.81 points illowskyintrostat1 4.PR.044 My Notes Ask Your Teache The Higher Education Research Institute at UCLA colected data from 203.967 incoming first time, u mefreshmen from ou r colleges and universities in the US. 71.4% of these students replied that, yes, they believe that same-sex couples should have there to legamat t us. Suppose that you randomly pickeight time, timefreshmen from the survey. You are interested in the number that believes that same-sex couples should have the ghetto legal...
Find the probability that x is between five and 14. (Round your answer to four decimal places.) X ~ N(6, 3)
14. -/1.81 points illowskyintroStat1 3.HW.112. The following table identifies a group of children by one of four hair colors, and by type of hair. Brown Blond Black Red Totals Hair Type Wavy Straight 16 5 44 Totals Part (a) Complete the table. Hair Type Brown Blond Black Red Totals Wavy Straight Totals Part (b) What is the probability that a randomly selected child will have wavy hair? (Enter your answer as a fraction) Part (c) What is the probability that...
-/3 POINTS ILLOWSKYINTROSTAT1 6.HW.068. The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.6 days and a standard deviation of 2.3 days. What is the probability of spending more than 3 days in recovery? (Round your answer to four decimal places.) Submit Answer ILLOWSKYINTROSTAT1 6.HW.069. The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.5 days and a standard deviation of 1.7 days. What is the...
+ -/1.81 points IllowskylntroStat1 3.PR.043. Q and R are independent events. P(Q) = 0.4; P(Q AND R) = 0.12. Find P(R). P(R) - Submit Answer View Previous Qu