The statistical data set is given 88,91,68,83 68,69,79,94,86,94,69,59,75,66,62,6

Question

The statistical data set is given
88,91,68,83 68,69,79,94,86,94,69,59,75,66,62,66,87,88,95,92,83,79,74 79,70,79,68
a) Find absolute and relative frequencies distribution of the following dataset; draw the diagram of the relative frequency;
1.Find Absolute Frequency; (AF)
2. Find Relative frequencies (RF)
3. Find Variable *Relative Frequencies( V*RF)
4. Find Mean subtract Variable(M-V)
5. Find (Mean -Variable)^2 (M-V)^2
6. Find (Mean -variable)^2 * Relative Frequencies. (M-V)^2*RF.
7. Find standard deviation.

Explanation / Answer

absolue frequency of a value is the number of times it appears in a sample data set.

so the frequencies of the values are

relative frequency=absolute frequency/total frequency

mean is sum of variable*relative frequencies i.e. sum of V column

then subtract each value in column V from the mean

thanks

first four answered only

value frequency relative frequency v 59 1 1/27 59/27 62 1 1/27 69/27 66 2 2/27 132/27 68 3 3/27 184/27 69 2 2/27 138/27 70 1 1/27 70/27 74 1 1/27 74/27 75 1 1/27 75/27 79 4 4/27 316/27 83 2 2/27 166/27 86 1 1/27 86/27 87 1 1/27 87/27 88 2 2/27 176/27 91 1 1/27 91/27 92 1 1/27 92/27 94 2 2/27 188/27 95 1 1/27 94/27

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