# Tree diagram help

Watch
Announcements

Page 1 of 1

Go to first unread

Skip to page:

0

reply

Report

#3

I'm rubbish at probability, well, probably!

It looks like you've done all the calculations. What is the total probability of arriving late in London? There are two paths that lead to that, so I'd add those probabilities.

It looks like you've done all the calculations. What is the total probability of arriving late in London? There are two paths that lead to that, so I'd add those probabilities.

0

reply

(Original post by

I'm rubbish at probability, well, probably!

It looks like you've done all the calculations. What is the total probability of arriving late in London? There are two paths that lead to that, so I'd add those probabilities.

**RogerOxon**)I'm rubbish at probability, well, probably!

It looks like you've done all the calculations. What is the total probability of arriving late in London? There are two paths that lead to that, so I'd add those probabilities.

I got 11/50

Also, would you be able to help me on question D

Posted from TSR Mobile

0

reply

Report

#5

The question is: How many cars are under £4000 in Peter's garage?

If you look at the box plot, you'll see that £4000 corresponds to the lower-end of the box. What does that tell you?

If you look at the box plot, you'll see that £4000 corresponds to the lower-end of the box. What does that tell you?

0

reply

(Original post by

The question is: How many cars are under £4000 in Peter's garage?

If you look at the box plot, you'll see that £4000 corresponds to the lower-end of the box. What does that tell you?

**RogerOxon**)The question is: How many cars are under £4000 in Peter's garage?

If you look at the box plot, you'll see that £4000 corresponds to the lower-end of the box. What does that tell you?

Posted from TSR Mobile

0

reply

Report

#8

(Original post by

Does that mean John's garage has more cars than Peters or something along those lines?

**z_o_e**)Does that mean John's garage has more cars than Peters or something along those lines?

The box in the box plot encloses the middle 50% of the population. The £4000 value corresponds to the lower side of the box, so what proportion of the cars are below that value? Once you know that, you can calculate the number of cars below £4000.

0

reply

(Original post by

Part (d) is just about Peter's garage.

The box in the box plot encloses the middle 50% of the population. The £4000 value corresponds to the lower side of the box, so what proportion of the cars are below that value? Once you know that, you can calculate the number of cars below £4000.

**RogerOxon**)Part (d) is just about Peter's garage.

The box in the box plot encloses the middle 50% of the population. The £4000 value corresponds to the lower side of the box, so what proportion of the cars are below that value? Once you know that, you can calculate the number of cars below £4000.

The proportion of the cars that are below £4000 are 8.

I think I do 240/8

Posted from TSR Mobile

0

reply

Report

#10

(Original post by

LQ- £4000

The proportion of the cars that are below £4000 are 8.

I think I do 240/8

**z_o_e**)LQ- £4000

The proportion of the cars that are below £4000 are 8.

I think I do 240/8

0

reply

(Original post by

What fraction of the cars are in the (price) lower quartile? It's quartile, as in quarter.

**RogerOxon**)What fraction of the cars are in the (price) lower quartile? It's quartile, as in quarter.

Posted from TSR Mobile

0

reply

Report

#13

(Original post by

4000/4*1 = 1000

**z_o_e**)4000/4*1 = 1000

0

reply

(Original post by

£4000 is the price - Peter has 240 cars, with a quarter of them below £4000, as that's the lower quartile price.

**RogerOxon**)£4000 is the price - Peter has 240 cars, with a quarter of them below £4000, as that's the lower quartile price.

Posted from TSR Mobile

0

reply

Report

#15

(Original post by

Lol i really don't understand this.

**z_o_e**)Lol i really don't understand this.

0

reply

(Original post by

We're told that Peter has 240 cars. From the box plot, a quarter are under £4000, so that's 240/4 = 60 cars under £4000.

**RogerOxon**)We're told that Peter has 240 cars. From the box plot, a quarter are under £4000, so that's 240/4 = 60 cars under £4000.

Posted from TSR Mobile

0

reply

Report

#17

(Original post by

So a quarter of the total amount of cars

**z_o_e**)So a quarter of the total amount of cars

0

reply

X

Page 1 of 1

Go to first unread

Skip to page:

### Quick Reply

Back

to top

to top