3+2×√(3)×1÷√(3)+2+√(2)−(√(3)+√(2))

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.

Solve for x and select the correct answer

Shirley spelled 12 of her 15 spelling words correctly on the test. what percentage did shirley get on the test?