### Create a StudySoup account

#### Be part of our community, it's free to join!

Already have a StudySoup account? Login here

# Review Sheet for MATH 115A with Professor Wood at UA

### View Full Document

## 20

## 0

## Popular in Course

## Popular in Department

This 3 page Class Notes was uploaded by an elite notetaker on Friday February 6, 2015. The Class Notes belongs to a course at University of Arizona taught by a professor in Fall. Since its upload, it has received 20 views.

## Popular in Subject

## Reviews for Review Sheet for MATH 115A with Professor Wood at UA

### What is Karma?

#### Karma is the currency of StudySoup.

#### You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 02/06/15

WS 17 Review of Random Variable amp Expected Values Name 1 Let X be the random variable of the total number of heads there are when you ip a coin 3 times A Write the sample space of ipping a coin 3 times and recording the outcome B What are the possible values of X 7 C Find the following probabilities if the coin is fair Calculate each one Recall PH 25 Each toss is independent so PX3PHPHPH555 PX 0 PX 1 PX 15 PX 2 PX 3 PX 4 PX 10 D Using the above information make a bar graph bars are not connected since input isn t continuous The probability is the venical andX values are on the horizontal Make an appropriate scale place values that make it easy to read the graph E Find the following Probabilities using your answers above PX lt 0 PX S 0 PX S 1 PX S 15 PX S 2 PXS3 PXS4 PX S 10 F Using the above information make a bar graph these bars are connected since the intervals are continuous Make an appropriate scale The vertical is the probability less than or equal to the input G Calculate the expected value 2 1 Let X be the random variable of the total number of heads there are when you ip a coin 3 times A this is the same sample space as 1 B The possible values of X is the same as 1 C Find the following probabilities if the coin is not fair The probability of getting a head is 70 Recall PH 27 Each toss is independent so PX3PHPHPH777 PX 0 PX 1 PX 15 PX 2 PX 3 PX 4 PX 10 D Using the above information make a bar graph bars are not connected since input isn t continuous The probability is the vertical and X values are on the horizontal Make an appropriate scale place values that make it easy to read the graph E Find the following Probabilities using your answers above PX lt0 PX 0 PX 1 PX 15 PX 2 PXS3 PXS4 PX S 10 F Using the above information make a bar graph these bars are connected since the intervals are continuous Make an appropriate scale G Calculate the expected value WS 17 Review of Random Variable amp Expected Values Name 3 A certain factory is producing resistors The factory has a defective rate of 4 on its resistors Let X be the random variable of how many defective resistors there are when 3 resistors are chosen Assume that a resistor is chosen and returned before the next is chosen And the events of choosing a resistor are independent A Write the sample space of choosing 3 resistors n 7 non defective and d 7 defective remember the sample space has 8 elements B What are the possible values of X 7 C Find the following Probabilities Recall Pd 04 Each draw is independent so PX3PdPdPd040404 Verify that the total sum of the probabilities equals 1 PX 0 PX 1 this can happen 3 di erentways PX 2 this can happen 3 di erentways PX 3 PX 4 PX 10 D Find the following Probabilities using your answers above PX lt 0 PX S 0 PX S 1 PX S 2 PX S 3 PX S 4 PX S 10 You do not have to make a graph E Calculate the expected value

### BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.

### You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

## Why people love StudySoup

#### "There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

#### "I signed up to be an Elite Notetaker with 2 of my sorority sisters this semester. We just posted our notes weekly and were each making over $600 per month. I LOVE StudySoup!"

#### "There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

#### "Their 'Elite Notetakers' are making over $1,200/month in sales by creating high quality content that helps their classmates in a time of need."

### Refund Policy

#### STUDYSOUP CANCELLATION POLICY

All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email support@studysoup.com

#### STUDYSOUP REFUND POLICY

StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here: support@studysoup.com

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to support@studysoup.com

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.