The room-size ranges suggested above for a 4-member family (family with 2 children) and a family with three teenagers are different. other than the number of people, the most important reason for the considerably larger total space range suggested for the latter category is

Can someone explain to me how to do

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.

Astock has a 25% probability of increasing by $10 and a 75% probability of decreasing by $5. what is the stocks expected increase or decrease?