exercise 71
calculate the variance and standard deviation of the hight of the seven class pupils
exercise 72
calculate the variance and standard deviation of the hight of the seminar students
exercise 73
calculate the variance and standard deviation of the hight of the students
exercise 74
calculate the variance and standard deviation of the grads of the seminar students
exercise 75
calculate the variance and standard deviation of the weight of the photography students
exercise 76
calculate the variance and standard deviation of the weight of the students
exercise 77
calculate the variance and standard deviation of the weight of the photography students
exercise 78
calculate the variance and standard deviation of the weight of the students
exercise 79
calculate the variance and standard deviation of the weight of the seven class pupils
exercise 80
calculate the variance and standard deviation of the weight of the students
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