There are 43 students in an elementary statistics class. On the basis of years of experience, the instructor knows that the time needed to grade a randomly chosen first examination paper is a random variable with an expected value of 5 min and a standard deviation of 4 min. If grading times are independent and the instructor begins grading at 6:50 P. M. and grades continuously, what is the (approximate) probability that he is through grading before the 11:00 P. M. TV news begins? (Round your answers to four decimal places.)
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “There are 43 students in an elementary statistics class. On the basis of years of experience, the instructor knows that the time needed to ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers
You Might be Interested in
What is 2550 gallons in 30 days in unit rate
Answers (1)
Which is a good example of a shield volcano? A. Mauna Loa B. Mount Saint Helens C. Mount Vesuvius D. Kilimanjaro
Answers (1)
Multiply. (9 * 10 5) ⋅ (9 * 10 7)
Answers (1)
Solve by the substitution method 9x+6y=0, - 9x+y=63
Answers (1)
Write the composite number for each prime factorization. You may wish to use a calculator. 5) 22 x 3 x 52 6) 2x32x7 7) 33 x 5 8) 2 x 53
Answers (1)
New Questions in Mathematics
A gerbil eats about 1/4oz of food per day. About how many pounds of food can a gerbil eat in a year?
Answers (1)
Which of the following is not a valid postulate or theorem for proving triangles congruent? A. SSA B. ASA C. AAS D. SAS
Answers (1)
The shaded figure is a rhombus. The area of the shaded section is 60 square units. What is the value of x? 4 units 6 units 8 units 9 units
Answers (2)
What is the multiple zero and multiplicity of x^3+2x^2+x
Answers (1)
Original grade 80 New grade 100 Find the percent of increase
Answers (1)