5) c) I. Draught excluder for doors and windows is sold in rolls of nominal length 10 meters. The actual length X meters
Posted: Sun Jul 10, 2022 11:48 am
5)
c)
I. Draught excluder for doors and windows is sold in rolls ofnominal length 10 meters. The actual length X meters of draughtexcluder on a roll may be modeled by a normal distribution withmean 10.2 and standard deviation is 0.15. Determine the 𝑃(10 < 𝑋< 10.5)
II. The height of 2000 students are normally distributed with amean of 174.5cm and a standard deviation of 6.9cm. Assuming thatthe heights are recorded to the nearest half – centimeter. How manyof these students would you expect to have height less than160cm?
c)
I. Draught excluder for doors and windows is sold in rolls ofnominal length 10 meters. The actual length X meters of draughtexcluder on a roll may be modeled by a normal distribution withmean 10.2 and standard deviation is 0.15. Determine the 𝑃(10 < 𝑋< 10.5)
II. The height of 2000 students are normally distributed with amean of 174.5cm and a standard deviation of 6.9cm. Assuming thatthe heights are recorded to the nearest half – centimeter. How manyof these students would you expect to have height less than160cm?