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Answers
Answer:
Pocket Money (x)= 10, 20, 30, 40
Number of students (f) = 4, 8, 12, 6
Total number of students = Sum (f) = 4+8+12+6 = 30
fx = 10x4, 20x8, 30x12, 40x6
fx = 40, 160, 360, 240
Sum (fx) = 40+160+360+240 = 800
a) Mean Pocket Money = Sum (fx)/ Sum (f)
= 800/30 = 80/3 = 26.67
b) Mode = Pocket money got by most number of students
= 12 students (most) get Rs.30
therefore, Mode = Rs.30
c) Median = Middle terms of 30 students
= Average of 15th and 16th students
15th Student and 16th student will get Rs.30
Therefore Median = (30+30)/2 = 60/2 = 30
Answer:
mean= 26.6 median=30 mode =30
Step-by-step explanation:
to find mean pocket money
sum fo the observation
/
number of the observation
800/30=26.6 something
therefore means=26.6
mode ==reapeting number =30
median= middle term of 30 students=average of 15th Student
we will get 15th and 16th observation
therefore 30+30/2=60/2=30
so median of students is 30
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