Question

in a mash test, the marks out of 10 for 10 students are : 5.6.7.3.9.10.5.6.8.8.
a.Find the range of the marks.
b. Find the mean of the marks.
c. During rechecking, the marks of 2 students are increased by 2 and 3 respectively.
What is the new average of the marks​

Answer 1

Answer:

HEY MATE HERE IS YOUR ANSWER :

[a] Range = Maximum value - Minimum value

Range = 10 - 3

•Range = 07

[b]Mean = Sum of Observation

__________________

No. of observation

Mean = 5+6+7+3+9+10+5+6+8+8

_____________________

10

Mean = 958

____

10

•Mean = 95.8

[c] Increased marks = 2 , 3 Increased marks = 2+3 = 5

Add 5 to the sum of observation

The new sum of observation is 963

The new average = 963

____

10

•The new average Is 96.3

HOPE IT HELPS YOU

MARK AS BRAINLIEST

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Answer 2

Answer:

range = highest observation - lowest observation

range = 10 - 3 = 7

range = 7

Mean = sum of term ÷ total no.

solve this by yourself

thank you to give me a chance to give you an answer because you are a legend and I am small as rat in your comparison.

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