\( 11: 26 \) ? ?- - numerade.com Numerade Upgrade QUESTION In a contest run by a store, each customer whose purchase exceeds \( \$ 100 \) is allowed to draw a discount coupon from a jar. At the beginning of the contest, the jar contains 30 slips for a \( 5 \% \) discount, 15 slips for an \( x \% \) discount, and 5 slips for a \( 15 \% \) discount. If the expected value of the first draw from the jar is \( 6.6 \% \), the value of \( x \) is . At one point in the contest, the jar contains 4 slips for a \( 5 \% \) discount, y slips for an \( x \% \) discount, and 2 slips for a \( 15 \% \) discount. If the expected value on the next draw is \( 8 \% \), the value of \( \mathrm{y} \) is. Submitted by Alexander B. ? Oct. 25, 2021 \( \cdot \) 05:48 p.m. VIDEO ANSWER
Added by Ciara
Close
Step 1
For the first draw, the total number of slips is 50 (30 + 15 + 5). The expected value is given as 6.6%. So, we can set up the equation as follows: (30/50)*5% + (15/50)*x% + (5/50)*15% = 6.6% Solving this equation gives us x = 10%. Show more…
Show all steps
Your feedback will help us improve your experience
David Nguyen and 58 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A store sells two brands of laptop sleeves. The store pays $\$ 25$ for each brand $A$ sleeve and $\$ 30$ for each brand $B$ sleeve. $A$ consulting firm has estimated the daily demand equations for these two competitive products to be $x=130-4 p+q$ Demand equation for brand $A$ $y=115+2 p-3 q$ Demand equation for brand $B$ where $p$ is the selling price for brand $A$ and $q$ is the selling price for brand $B$. (A) Determine the demands $x$ and $y$ when $p=\$ 40$ and $q=\$ 50 ;$ when $p=\$ 45$ and $q=\$ 55$ (B) How should the store price each brand of sleeve to maximize daily profits? What is the maximum daily profit? [Hint: $C=25 x+30 y, \quad R=p x+q y,$ and $P=R-C .]$
Multivariable Calculus
Maxima and Minima
3-25 Brilliant Color is a small supplier of chemicals and equipment that are used by some photographic stores to process 35mm film. One product that Brilliant Color supplies is BC-6. John Kubick, president of Brilliant Color, normally stocks 11, 12, or 13 cases of BC-6 each week. For each case that John sells, he receives a profit of $35. Like many photographic chemicals, BC-6 has a very short shelf life, so if a case is not sold by the end of the week, John must discard it. Since each case costs John $56, he loses $56 for every case that is not sold by the end of the week. There is a probability of 0.45 of selling 11 cases, a probability of 0.35 of selling 12 cases, and a probability of 0.2 of selling 13 cases. Construct a decision table for this problem. Include all conditional values and probabilities in the table. What is your recommended course of action? If John is able to develop BC-6 with an ingredient that stabilizes it so that it no longer has to be discarded, how would this change your recommended course of action?
Aarti K.
For Exercises $10-13,$ use the following information. Mai-Lin is shopping for computer software. She finds a CD-ROM that costs $\$ 49.99,$ but is on sale at a 25$\%$ discount. She also has a $\$ 5$ coupon she can use. Express the price of the CD after the discount and the price of the CD after the coupon. Let $x$ represent the price of the CD, $p(x)$ represent the price after the 25$\%$ discount, and $c(x)$ represent the price after the coupon.
Radical Equations and Inequalities
Operations on Functions
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Watch the video solution with this free unlock.
EMAIL
PASSWORD