Mathematics, 05.11.2020 20:50 invocx
A recent study of the lifetimes of cell phones found the average is 24.3 months. The standard deviation is 2.6 months. If a company provides its 33 employees with a cell phone, how many of these phones lasts less than 23.8 months. Assume cell phone life is a normally distributed variable.
I got 0.1357
It asked me to round it to the whole number it will be 0.1357 x 100= 13.57 so the final answer is 14 , but the computer marked it wrong any suggestions.
Answers: 1
Mathematics, 21.06.2019 19:00, eparikh7317
Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers
Answers: 1
A recent study of the lifetimes of cell phones found the average is 24.3 months. The standard deviat...
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