By 2005, 42 different men had been President of the Untied States. Of these men, 2/21 had no children. How many presidents had no children?

the answer is 4

Step-by-step explanation: 4/42 simplified is 2/21. 2/21 is 1/2 of 4/42.

4 Presidents had no children

Step-by-step explanation:

To make 2/21 = 42, you have to multiply 2/21 by 2. You multiply both sides of 2/21 so you now have 4/42, which is equal to 2/21. You now have 4/42 which is saying 4/42 presidents or, 4 out of 42 president have no kids.

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.