Question

o From a survey involving 1,000 university students, a market research company found that 770 students owned laptops, 480 owned cars and 300 owned cars and laptops. If a university student is selected at random, what is each empirical probabil? (A) The student owns thar a car or a laptop Bi The student owns neither a carora laptop A The empirical probability that the student owns either a car or a laptop is Type an integer or a decimal) ) The empirical probably that the student owns neither a car nor a laptop is 1 Type an integrera decimal)

Answer 1

Answer

A. 0.87

B. 0.13

Total students = 1000 -> nisj=1000 Number of students owned laptops =770 => N(L)=770 Number of students owned cars = 480 _ nlc) = 480 Number of students owned cars and laptops=300 => ALLn()=300

Venn Diagram Inc L 390 300 180 130 ALL) Probability own Laptops= 770 Looo 77 IDO nis) probability own 448 Cars = nel nis) = 480 12 25 TODO probability own Laptops and carbs nline) NLS) 300 ODO 10 The probability that the student owns either a car 68) a laptop PLLUC) = PLL)+PLC)-PLLNZ).

3 pllues=77.+ - 7Z+48-30 100 = 87 100 plluc) = 0.87% ③ The probability that the student owns neither a cas nor a laptop is ACCUch') = 1-pllue) sl-0.87 = 0.13 ... PILLUcy'] =0.13 Answers The probability that the students owns either a car 65) 0.87' 11 a laptop is 6 The probability that the students owns neither a cas a laptop is "D.13" moss