Question

egin{tabular}{|c|c|} hline multicolumn{2}{|c|}{egin{tabular}{c} Discrete \ Probability \ Distribution end{tabular}} \ hline ( oldsymbol{x} ) & ( oldsymbol{P}(oldsymbol{x}) ) \ hline 13.00 & 0.45 \ hline 21.00 & 0.15 \ hline 29.00 & 0.18 \ hline 37.00 & 0.08 \ hline 45.00 & 0.06 \ hline 53.00 & 0.08 \ hline hline end{tabular} a) Find the expected value of random variable ( X ). For full marks your answer should be accurate to at least two decimal places. Expected Value: 0 b) Find the variance of this discrete probability distribution. For full marks your answer should be accurate to at least two decimal places. Variance: 0 c) Find the standard deviation of this discrete probability distribution. For full marks your answer should be accurate to at least two decimal places.

          egin{tabular}{|c|c|}
hline multicolumn{2}{|c|}{egin{tabular}{c} 
Discrete \
Probability \
Distribution
end{tabular}} \
hline ( oldsymbol{x} ) & ( oldsymbol{P}(oldsymbol{x}) ) \
hline 13.00 & 0.45 \
hline 21.00 & 0.15 \
hline 29.00 & 0.18 \
hline 37.00 & 0.08 \
hline 45.00 & 0.06 \
hline 53.00 & 0.08 \
hline hline
end{tabular}
a) Find the expected value of random variable ( X ).

For full marks your answer should be accurate to at least two decimal places.
Expected Value: 0
b) Find the variance of this discrete probability distribution.

For full marks your answer should be accurate to at least two decimal places.
Variance: 0
c) Find the standard deviation of this discrete probability distribution.

For full marks your answer should be accurate to at least two decimal places.

egintabular|c|c|
hline multicolumn2|c|egintabularc
Discrete Probability Distribution
endtabular hline ( oldsymbolx ) ( oldsymbolP(oldsymbolx) ) hline 13.00 0.45 hline 21.00 0.15 hline 29.00 0.18 hline 37.00 0.08 hline 45.00 0.06 hline 53.00 0.08 hline hline
endtabular
a) Find the expected value of random variable ( X ).

For full marks your answer should be accurate to at least two decimal places.
Expected Value: 0
b) Find the variance of this discrete probability distribution.

For full marks your answer should be accurate to at least two decimal places.
Variance: 0
c) Find the standard deviation of this discrete probability distribution.

For full marks your answer should be accurate to at least two decimal places.

Added by Tatenda T.

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