1. Calculate quartile deviation from the following:
Size of class 0-5 5-10
10-15 15-20 20-25 25-30
Frequency 4. 7 8 2 6 3
Answers
Answer:
1).
[( \frac{1}{3}) { }^{ - 2} - ( \frac{1}{2} ) {}^{ - 3} + ( \frac{1}{4} ) {}^{ - 4} ] {}^{ - 1} \div 5 {}^{ - 2}[(31)−2−(21)−3+(41)−4]−1÷5−2
[( \frac{3}{1}) {}^{2} - ( \frac{2}{1} ) {}^{3} + ( \frac{4}{1} ) {}^{4} \div( \frac{5}{1} ) {}^{2} ][(13)2−(12)3+(14)4÷(15)2]
[ (\frac{9}{1} ) - (\frac{8}{1} ) + (\frac{256}{1} ) \div (\frac{25}{1}) ][(19)−(18)+(1256)÷(125)]
\frac{256}{1} \div \frac{25}{1}1256÷125
\frac{256}{1} \times \frac{1}{25} = \frac{256}{25} Answer1256×251=25256Answer
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(2).
( \frac{1}{2} ) {}^{ - 2} + ( \frac{1}{3} ) {}^{ - 2} + ( \frac{1}{4} ) {}^{ - 2}(21)−2+(31)−2+(41)−2
( \frac{2}{1} ) {}^{2} + ( \frac{3}{1} ){}^{ 2} + ( \frac{4}{1} ) {}^{2}(12)2+(13)2+(14)2
\frac{4}{1} + \frac{9}{1} + \frac{16}{1} = \frac{29}{1} Answer14+19+116=129Answer
Answer:
1.25256
2.129
Explanation:
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