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3130 Tilghman StreetAllentown, PA 18104

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Miracle-Ear Hearing Aids in Allentown, PA

There's simply no better place for hearing aids in Allentown, PA, than Miracle-Ear®. Our center proudly provides hearing aids with our new GENIUS™ Technology. We also offer the Mirage hearing aid, which is invisible when worn. For active people looking for a waterproof hearing aid to wear while they're swimming, we have the Aquavi®. These hearing aids are able to adapt to the individual hearing preferences of users.

Our Accessories

We offer many hearing aid accessories. Our wireless communication devices allow you to listen to your cell phone or MP3 player through your hearing aids via Bluetooth®* technology. We offer hearing aid remote controls to discreetly and easily adjust hearing aid settings, including tone and volume. Our combination battery chargers and dehumidifiers allow you to keep your hearing aid fully charged and operating smoothly without having to fumble with batteries.

Our Commitment to Ongoing Care

Schedule a free hearing test* with us if you think you may have hearing loss. If you do, then chances are good that you can benefit from one of our hearing aids. Our experienced specialists will help you find the best match for your needs. You can take your hearing aid into any of our over 1300 locations nationwide for free checkups for as long as you own it. A checkup includes:

The Miracle-Ear Experience in Allentown, PA

Once you discover and experience the Miracle-Ear® advantage at our hearing aid center, you'll see why we're America's most recognized brand of hearing aids. Like all of our locations, ours is independently owned and operated with hearing care specialists who are totally committed to your satisfaction. Call us today if you live in Allentown, Catasauqua, Bethlehem, Coplay, Lehigh Valley, or a neighboring area.

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" My joy has returned. Life is good ... " Read Mary's Story

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" I wanted to be able to hear her say 'I do.' ... " Read Roy's Story

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" He said 'Okay, we have a solution for that.' He was very reassuring... " Read Amber's Story

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Hearing aids do not restore natural hearing. Individual experiences vary depending on severity of hearing loss, accuracy of evaluation, proper fit and ability to adapt to amplification.

*The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth® SIG, Inc., and any use of such marks by Miracle-Ear is under license. Other trademarks and trade names are those of their respective owners.

**Hearing test is always free. Not a medical exam. Audiometric test to determine proper amplification needs only.

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Resource ID: M7M2L17
Grade Range: 7


Comparing Theoretical and Experimental Probabilities
Using Probabilities to Make Predictions
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When you are working with the probability that an event could happen, that is called theoretical probability .

For example, when rolling a typical six-sided number cube, there is only one "6" on the cube and an equal chance of any number landing face up.

There are other types of probability. Sometimes, a simulation or a series of events has already occurred, and there is data that can be used to make a prediction. If you are estimating probability based on data that has been collected, it is called experimental probability .

For example, if a dart is randomly thrown at a dartboard 40 times, data can be collected based on the numbered sector in which the dart lands.

Working with both theoretical and experimental probability is important, since frequently in the real world, what should happen, and what really does happen, are quite different!

In this section, you will use a spinner simulator to conduct several "spins" in order to compare theoretical probabilities with experimental probabilities.

Use the "Spinner" below which has three equal-sized sections that are blue, red, and yellow.

Assume that the areas of each sector of the spinner are the same.

Repeat the process with the same spinner for a total of 100 spins.

Because theoretical and experimental probabilities are ratios, we can use proportions with probabilities to make predictions.

Solve the proportion that you set up in order to determine the answer to the original question,


1. The probability that one wristband is defective is . In a case of 840 wristbands, how many would be defective?

2. Benita observed that 28 out of 55 patrons at the public library used the computer. The librarian told Benita that 660 patrons enter the library throughout the day. Based on Benita's observations, how many patrons during the day would be expected to use the computer?

3. Clayton selected number tiles out of a bag. He recorded his results in the table.

Based on these results, if Clayton draws 100 tiles, how many odd numbers should he expect to draw?

You compared two different types of probability: theoretical probability and experimental probability.

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is the ratio of the number of favorable outcomes to the number of total possible outcomes. Experimental probability is the ratio of the number of times an event occurs to the total number of trials.

In other words, theoretical probability is a ratio that describes what should happen, but experimental probability is a ratio that describes what actually happened.

Differences between Theoretical and Experimental Probabilities You can use theoretical and experimental probabilities to distinguish between the likelihood of something happening from a purely theoretical perspective and the chances of something happening based on actual results.

Making Predictions You can also use theoretical and experimental probabilities to make predictions from situations by treating them like proportion problems.

The results of a random survey of 8th grade students at Jamison Middle School showed that 15 out of 45 students like eating lunch at 10:30 a.m. If there are 330 students in the 8th grade at Jamison Middle School, approximately how many students would be expected to prefer eating lunch at 10:30 a.m.?

110 students would like eating lunch at 10:30 a.m.

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Use a probability simulation to model the spread of a wildfire Theoretical Probability versus Experimental Probability

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