A test subject is randomly selected and tested for the disease. What is the probability the subject does not have the disease given that the test result is positive? A) 0.775 B) 0.225 C) 0.65 D) 0.141
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- 100 persons are surveyed about their smoking habits. The results are shown below: Do you smoke? Male Female Total Yes 14 12 26 What is the probability that a randomly selected smoker is male? Enter the exact answer, or round the answer to three decimal places No 46 28 74 Total 60 40 100In the experiment of tossing a coin 11 times. The probability of getting three heads at the most Select one: a. 0.500000 b. 0.125000 c. 0.005371 d. 0.113281 e. 0.000488 f. 0.080566 g. 0.026855A manufacturer received an order of 105 computer chips. Unfortunately, 5 of the chips are defective. To test the shipment, the quality-control engineer randomly selects 5 chips from the box of 105 and tests them. What is the probability of obtaining 2 defective chips? O A. 0.01675 O B. 0.10328 O C. 0.19528 O D. 0.02833
- The probability that a patient correctly diagnosed by a doctor with a rare stomach disease is 0.4. If 15 people are known to have contracted this disease, what is the probability that: a. Exactly 5 diagnosed correctly? b. From 5 to 7 diagnosed correctly?100 persons are surveyed about their smoking habits. The results are shown below: Do you smoke? Male Female Total Yes 14 12 26 What is the probability that a randomly selected smoker is male? Enter the exact answer, or round the answer to three decimal places No 46 28 74 Total 60 40 100A test of 100 motor is done to determine the defective motors. The probability that a motor is defective is 0.02. The motors defects are independent random variable. The probability that exactly two motors are defective given that the number of defective motors is two or fewer is: Select one: a. 0.3127 b. 0.5846 c. 0.5364 d. 0.404 e. 0.4773
- A test was given to a group of students. The grades and gender are summarized below A B C Total Male 8 13 6 27 Female 11 14 3 28 Total 19 27 9 55 If one student is chosen at random from those who took the test,Find the probability that the student was male GIVEN they got an 'A'.need asapThe probability that an adult possesses a credit card is .65. A researcher selects three adults at random. The probability that the first adult possesses a credit card and the second adult does not possess a credit card and third posseses it. Type your answer here:
- The probability of visiting the zoo is 0.80. The probability of visiting the caverns is 0.55. The probability of visiting both is 0.42. What is the probability of the visiting the zoo or the caverns? 1) 0.93 2) 0.44 3) 1.35 4) 0Consider the random experiment of selecting 5 balls from a box containing 60 Green and 40 white balls . The probability of selecting 2 white and 3 green balls is A. 0.3545 B. 0.1600 C. 0.5000 D. 0.4000A fair die is rolled ten times. What is the probability of getting an even number 4 times out of 10? (3 d.p.)