8bithelix:
1. A survery was taken of 36 people to see if they owned a car or a truck. the results are shown in the venn diagram: Car=15 both=4 truck=9 http://prntscr.com/jhvj93
8bithelix:
@Vocaloid
Hero:
\(\begin{array}{ |c|c|c| } \hline & \text{Own a car} & \text{Don't Own a car} & \text{Totals}\\ \hline \text{Own a Truck} & & &\\ \hline \text{Don't Own a Truck} & & & \\ \hline \text{Totals} & & & \\ \hline \end{array}\)
Hero:
@8bithelix, so how many people participated in the survey?
8bithelix:
36
Hero:
Very Good, so we can put that amount here: \(\begin{array}{ |c|c|c| } \hline & \text{Own a car} & \text{Don't Own a car} & \text{Totals}\\ \hline \text{Own a Truck} & & &\\ \hline \text{Don't Own a Truck} & & & \\ \hline \text{Totals} & & & 36\\ \hline \end{array}\) So next, how many people own a car?
8bithelix:
15
Hero:
Excellent! \(\begin{array}{ |c|c|c| } \hline & \text{Own a car} & \text{Don't Own a car} & \text{Totals}\\ \hline \text{Own a Truck} & & &\\ \hline \text{Don't Own a Truck} & & & \\ \hline \text{Totals} & 15 & & 36\\ \hline \end{array}\) Next, how many people own a Truck?
8bithelix:
9
Hero:
Nice! \(\begin{array}{ |c|c|c| } \hline & \text{Own a car} & \text{Don't Own a car} & \text{Totals}\\ \hline \text{Own a Truck} & & &9\\ \hline \text{Don't Own a Truck} & & & \\ \hline \text{Totals} & 15 & & 36\\ \hline \end{array}\) How many people own both?
8bithelix:
4
Hero:
You got it! \(\begin{array}{ |c|c|c| } \hline & \text{Own a car} & \text{Don't Own a car} & \text{Totals}\\ \hline \text{Own a Truck} &4 & &9\\ \hline \text{Don't Own a Truck} & & & \\ \hline \text{Totals} & 15 & & 36\\ \hline \end{array}\) So the next step after that is to subtract the overall total from the known totals. To find how many people in total don't own a car, we subtract the number of people who do own a car from the number of people who participated in the survey. In other words, 36 - 15 = ?
Hero:
@8bithelix are you still here?
8bithelix:
yeah im sorry, 21 tho
Hero:
Correct \(\begin{array}{ |c|c|c| } \hline & \text{Own a car} & \text{Don't Own a car} & \text{Totals}\\ \hline \text{Own a Truck} &4 & &9\\ \hline \text{Don't Own a Truck} & & & \\ \hline \text{Totals} & 15 &21 & 36\\ \hline \end{array}\) To find the total number of people who don't own a truck we subtract the total amount of people who own a truck, 9, from the total amount of people who participated in the survey, 36. In other words, 36 - 9 = ?
8bithelix:
27
Hero:
Yes, now we have: \(\begin{array}{ |c|c|c| } \hline & \text{Own a car} & \text{Don't Own a car} & \text{Totals}\\ \hline \text{Own a Truck} &4 & &9\\ \hline \text{Don't Own a Truck} & & &27 \\ \hline \text{Totals} & 15 &21 & 36\\ \hline \end{array}\) To figure out how many people don't own a car, subtract the total amount of people that own a truck from the total amount of people who own both a truck and a car. In other words 9 - 4 = ?
8bithelix:
5
Hero:
Precisely: \(\begin{array}{ |c|c|c| } \hline & \text{Own a car} & \text{Don't Own a car} & \text{Totals}\\ \hline \text{Own a Truck} &4 & 5 &9\\ \hline \text{Don't Own a Truck} & & &27 \\ \hline \text{Totals} & 15 &21 & 36\\ \hline \end{array}\) To find how many people don't own a truck, subtract the number of people who own both a truck and a car from the total amount of people who own a car. In other words 15 - 4 = ?
8bithelix:
11
Hero:
Yup! \(\begin{array}{ |c|c|c| } \hline & \text{Own a car} & \text{Don't Own a car} & \text{Totals}\\ \hline \text{Own a Truck} &4 & 5 &9\\ \hline \text{Don't Own a Truck} & 11& &27 \\ \hline \text{Totals} & 15 &21 & 36\\ \hline \end{array}\) Finally, to find how many people don't own a truck or a car, we can either subtract the total amount of people who own a car but not a truck from the total amount of people who don't own a truck.(27 - 11 = ?) Or we can subtract the total amount of people own a truck but not a car from the total amount of people who Don't own a car. (21 - 5 = ?) Either way you get the same number.
8bithelix:
16
Hero:
Perfect! \(\begin{array}{ |c|c|c| } \hline & \text{Own a car} & \text{Don't Own a car} & \text{Totals}\\ \hline \text{Own a Truck} &4 & 5 &9\\ \hline \text{Don't Own a Truck} & 11&16 &27 \\ \hline \text{Totals} & 15 &21 & 36\\ \hline \end{array}\) Any questions?
8bithelix:
i have one question, the number selections. like 8 23 19 17 and 13 dont match up on the grid
Hero:
There should be a button to the left of those numbers that you can click to find the other numbers.
8bithelix:
i know but this is what i got so far, the rest of the ones i didnt complete contain the numbers that isn on the graph you did http://prntscr.com/jhwilu
8bithelix:
ill work on another subject until you get back at this
Join our real-time social learning platform and learn together with your friends!
Bounty:
guys I'm losing all my motivation for school work how can I motivate myself to stop being lazy because even while I'm being on my work it still piles up and
albert14ring:
Can you give me suggestions on the fastest and most organized way to be ready early in the morning to go to school without any confusion or delay? The impor
Twaylor:
how to make good breakfast food ingredients : 1 mother flat bread bananas peanut
lovelove1700:
u00bfA quu00e9 hora es tu clase?Fill in the blanks Activity unlimited attempts left Completa.
glomore600:
find someone says that that one person your talking to doesn't really like you should I take their advice and leave or should I ask the person i'm talking t
Addif9911:
Him I dimmed the light that once felt mine, a glow I never meant to lose. I over-read the shadows, let voices crowd the room where only two hearts shouldu20
EdwinJsHispanic:
Poem to my mom who proved my point "You proved my point, I am a failure. but I kinda wish, you were my savior.