Answer:
The probability distribution for x:"number of children per family for this income group" is:

Step-by-step explanation:
With the information given we have the relative frequencies of each category.
We know:

Answer:
33.33 percent are not riding the bus
Step-by-step explanation:
Try 3+x which would be 4 and 7 is greater then 4 because x by its self or and other variable is 1. hope this helped!
Answer:
$1.60 for tax, $33.60 all together
Step-by-step explanation:
32 x .05 = 1.6
Answer: $20
Explanation: If you have $17.70 after 2 games and $14.25 after 5, you do 17.70-14.25; which equals $3.45 so in 3 games you spend $3.45 now divide that by 3 to determine the unit value; which equals $1.15, so you spend $1.15 on every game now times that by 2 which is $2.30 and add that to $17.70 to see the original amount of money on the card which was $20