Mathematics, 26.04.2020 02:19, jontae81

The 26 students in a math class can finish 100 problems in a mean time of 4 min. The standard deviation is 1 min. How many students in the class will still be working after 5 min?

Please help! I just need a reference so I can do my test with ease!

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The 26 students in a math class can finish 100 problems in a mean time of 4 min. The standard deviat...