Question

A group of students was given a special test. The test was completed by various students and following duration of time ( in minutes ) :

17 , 19 , 20 , 22 , 24 , 24 , 28 , 30 , 30 , 36

(1). Find the mean time taken by students to complete test.

(2). find the new mean, if another student who took 14 minutes is also included.


plzz give me answer of this question
its urgent​

Answer 1

Answer:

☞ mean time = 17+19+20+22+24+24+28+30+ 30+36÷10

=> 250÷10 => 25( answer)

☞ 250+14÷11 => 24( answer)

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