a is normally distributed. The probability that X is between-t and t is 88%. Find the probability that is less than t. 1.5% 3% 6% 12% 36% 44% 88% 91% 94% 98% t
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given data
normal distribution
P(-t<x<t) = 0.88
P(x<t) = ?
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- The data represent the results for a test for a certain disease. Assume one individual from the group is randomly selected. Find the probability of getting someone who tests negative, given that he or she did not have the disease. The individual actually had the disease Yes No Positive 127 18 Negative 34 121 The probability is approximately enter your response here. (Round to three decimal places as needed.)Let X denotes the number of patients who die at a certain hospital in a day. The following table gives the probability function of X. 2. 4 P(X = x) 0.3 0.25 0.25 0.15 0.05 The expected number of deaths per day in the hospital is: 1. 3.3 2.4 O 17 O O O Og is the probability distribution of a random variable that represents the number of extracurricular activities a college freshman participates in. x 0 1 2 3 4 Px 0.06 0.13 0.45 0.23 0.13 Send data to Excel Find the probability that a student participates in at most three activities.
- For any continuous probability distribution, P(x = a) = 0 for all values of a. %3D O A. True O B. False Ma esc 0% F3 000 000 F4 F2 F5 %23The literacy rate for a nation measures the proportion of people age 15 and over that can read and write. The literacy rate in Afghanistan is 28.1%. Suppose you choose 15 people in Afghanistan at random. Let X = the number of people who are literate. Find the probability that is four people are literate. 0.2259 0.2246 O 0.1927 None of the choicesThe individual actually The data represent the results for a test for a certain disease. Assume one individual from the group is randomly selected. Find the probability of getting someone who tests negative, given that he or she did not have the disease. had the disease Yes No Positive Negative 129 23 27 121 The probability is approximately (Round to three decimal places as needed.)
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- Q2: For the project, its data shown below find: ● Time in weeks that gives a probability of %97.5 Probability of finishing the project 4 weeks more than TE Probability of finishing the project 3 weeks less than TE Act. 1-2 2-3 2-5 2-4 3-4 3-7 5-6 6-7 4-7 0 8 4 7 7 4 7 10 10 4 M 10 5 8 9 6 8 14 14 5 24 12 21 11 8 15 24 24 12Claims for a health company insurance are exponentially distributed. An insurance company offers the subscriber two different types of insurance, class A has a coverage of 1.54. For a random loss, with a probability of 0.640. Class B has a coverage of d. with a probability of 0.512. The value of d is:The data in the following table summarize results from 98 pedestrian deaths that were caused by accidents. If three different deaths are randomly selected without replacement, find the probability that they all involved intoxicated drivers. F2 The probability is (Round to six decimal places as needed.) W Driver Intoxicated? ew an example Ask my instructor S X H mand # 3 80 Yes No E D C Pedestrian Intoxicated? O Yes 18 8 $ 4 Q F4 R F ar se % 5 V e F5 T No. 32 40 G 6 B MacBook Air F6 Y H & 7 N F7 U J * 8 DII F8 | M ( 9 K F9 O . Clear all - : ; option F11 { [ + ? = Check answer B F12 } 1 delete retu C
