Question

Help Me!
Solve the question from Ch-19.
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Need answer with explanation
Don't answer if you don't know

Please solve this question as it is coming in my final exam.

Thank You!​

Answer 1

Answer:

I hope it will help you

Step-by-step explanation:

i)

mean = \frac{18 + 20 + 21 + 23 + 25 + 25 + 29 + 31 + 31 + 37}{10}mean=

10

18+20+21+23+25+25+29+31+31+37

=260÷10

=26

ii) Mean time is 26. So, 3 students took more time than the mean (31,31,37).

iii) If the student who took 37 minutes had taken 23 minutes then the times would be:

18,20,21,23,23,25,25,26,31,31

So mean would be 246÷10=24.6

please mark as brainliest!