ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos


Statistics, Data, and Probability II Videos 30 videos

CAHSEE Math 3.2 Statistics, Data, and Probability II
224 Views

Statistics, Data, and Probability II Drill 3 Problem 2. Which two sports together make up for the preferences of more than half of all those w...

CAHSEE Math 3.3 Statistics, Data, and Probability II
198 Views

Statistics, Data, and Probability II Drill 3 Problem 3. One hundred twenty of those who were asked preferred what sport?

CAHSEE Math 1.1 Statistics, Data, and Probability II
191 Views

CAHSEE Math Statistics, Data, and Probability II: Drill 1 Problem 1. Which of the following tables best represents the relationship between the val...

See All

CAHSEE Math 5.5 Statistics, Data, and Probability II 192 Views


Share It!


Description:

Statistics, Data, and Probability II Drill 5, Problem 5. If Bert purchased $15,000 in merchandise at wholesale prices, how much would he need to make in total sales to earn a 12% profit?

Language:
English Language

Transcript

00:03

Here’s a question to put a little shmoop in your step…

00:06

For the past few years, the owners of a local baseball team, the Fighting Pansies, have

00:10

been trying to increase slumping attendance by lowering ticket prices.

00:14

Twitter feedback indicates that the biggest barrier to ticket sales is the high cost of the ticket.

00:20

No one wants to pay through the roof to watch a bunch of Pansies play baseball.

00:24

If a scatter plot were used here, horizontal values on it could represent the ever-higher

00:29

markdowns in ticket prices each year with respect to the original prices.

00:35

On the other hand, vertical values could represent the percentage increase in average attendance

00:40

per game starting from the beginning of the ticket price reductions.

00:44

Based on the above description, which of the following would be the most accurate statement

00:49

about the scatter plot representing this situation?

00:52

And here are the potential answers...

00:57

OK, so this long, hairy question is asking us to interpret a scatter plot… without providing us a scatter plot.

01:04

In other words… if WE were in charge of converting the given information into a scatter

01:08

plot… how on Earth would we do it?

01:10

Well, the problem tells us we should show

01:12

the discounted ticket prices along the horizontal, or x-axis…

01:17

…and the vertical, or y-axis, should show the percentage of increase in attendance.

01:22

If we were to put together such a plot, like this…

01:24

...with attendance going up as discounts go up…

01:27

…we’d have a POSITIVE correlation, since our plotted points move in an upward direction

01:31

from left to right.

01:33

Be careful here…

01:34

…if we were to compare attendance with ticket PRICES, we’d have a negative correlation…

01:38

…but because we’re asked to put the DISCOUNTS along the x-axis,

01:42

we actually do wind up with a positive correlation.

01:47

So our answer is A.

01:49

As in, “All-star.”

Related Videos

CAHSEE Math 5.3 Algebra and Functions
2033 Views

CAHSEE Math: Algebra and Functions Drill 5, Problem 3. Solve the equation.

SAT Math 6.1 Geometry and Measurement
3974 Views

SAT Math 6.1 Geometry and Measurement

CAHSEE Math 3.4 Statistics, Data, and Probability I
363 Views

Statistics, Data, and Probability I: Drill Set 3, Problem 4. How many different avatars can be created based on the given options?

CAHSEE Math 3.2 Statistics, Data, and Probability II
224 Views

Statistics, Data, and Probability II Drill 3 Problem 2. Which two sports together make up for the preferences of more than half of all those w...

CAHSEE Math 3.3 Statistics, Data, and Probability II
198 Views

Statistics, Data, and Probability II Drill 3 Problem 3. One hundred twenty of those who were asked preferred what sport?