Set A Q. No. 11 Calculate the oxidation number of:
ii. Mn in MnO4
gi
OX
Cin HC204​

step-by-step explanation:

i have done this all on a piece of paper but idk how to put it on here cuz it needs to be drawn

positive

step-by-step explanation:

the quadrant is facing upwards

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b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation:

the answer i believe is 27 units.

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