ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos


SAT Math Videos 353 videos

SAT Math 10.1 Geometry and Measurement
327 Views

SAT Math 10.1 Geometry and Measurement. How many cans of paint are needed?

SAT Math: Identifying an Equation for the Average of Two Percentages
23 Views

In 2014, the unemployment rate of one county in California was 7%. In another county, the unemployment rate was 11%. Which of the following express...

SAT Math: Which Equation Represents Profit?
13 Views

Angela is making cookies for a bake sale. She expects each batch of her cookies to sell for $40. It costs her $10 to make one batch of cookies, and...

See All

Calculating Probability Using Watermelon Candy and Email Surveys 3 Views


Share It!


Description:

Employees of a candy company surveyed people of different ages and asked them their favorite flavor of candy. One of the surveyors chooses to send a follow-up email to one of the survey participants. He chooses from the group of participants between the ages of 12 and 25. What is the probability that the person who receives that email preferred watermelon?


Transcript

00:02

Okay i say t match members We got on the

00:03

chart table thinking for you here lemon orange grape on

00:07

a military may get hungry Alright What is it about

00:10

let's See employees of a candy company surveyed people of

00:13

different ages and asked them there for favorite flavor of

00:18

candy One of the surveyors wants to send a follow

00:21

up spam email thing to a respondent Meaning someone who

00:25

responded to the survey The respondent was between the ages

00:28

of twelve and twenty five So what is the probability

00:31

that the person who receives that email preferred watermelon four

00:36

years All right so let's go up here We're gonna

00:41

look at the ages twelve and twenty five So they

00:43

must mean these two columns and they're asking us probably

00:47

person who's Your watermelon Well let's See we've got ninety

00:50

two and eighty six out of a total of let's

00:54

Say it looks like sixteen sixty six let's Think about

00:56

this So hopefully we get a free piece Candy if

00:59

we get this right Since the surveyor only chose from

01:02

people age twelve through twenty five Yeah these columns or

01:05

the right way to go and find the total number

01:07

Of people in this age range So this will be

01:11

the denominator of the probability expressions We gotta add three

01:15

seventy two and four seventy one So it's not out

01:18

of the total it's just out of this age range

01:20

group here right Well the numerator is the number of

01:23

people who like watermelon but only from those two columns

01:26

and that's that ninety two plus eighty six number So

01:28

that gets us well What is that uh one seventy

01:32

eight over eight forty three it's about point to one

01:35

or twenty one percent Twenty one percent is the probability

01:38

that a person who receives that email preferred watermelon All 00:01:42.193 --> [endTime] right that's it We're not where's our candy

Related Videos

SAT Math 1.1 Algebra and Functions
315 Views

SAT Math 1.1 Algebra and Functions. Find an algebraic equation to correspond with the data.

SAT Math 1.1 Geometry and Measurement
719 Views

SAT Math 1.1 Geometry and Measurement. What is the circumference of the circle?

SAT Math 1.1 Numbers and Operations
280 Views

SAT Math 1.1 Numbers and Operations. How many combinations of beverage and cereal can be made?

SAT Math 1.1 Statistics and Probability
289 Views

SAT Math 1.1 Statistics and Probability. In which of the following data sets are the arithmetic mean and the median equal?

SAT Math 1.2 Algebra and Functions
359 Views

SAT Math: Algebra and Functions Drill 1, Problem 2. Based on the data in the table, what is the maximum heart rate for the average 22-year-old?