Probability Calculator Plus vs LEXEphant

Master probability and statistics with Probability Calculator — the most complete probability calculator for students, teachers, and data enthusiasts. Whether you're studying for an exam, teaching a class, or working through real-world statistics problems, ProbCalc gives you instant answers with full step-by-step solutions so you truly understand the math. - PROBABILITY CALCULATIONS - • Basic Probability — Calculate P(A) from favorable and total outcomes • Conditional Probability — Solve P(A|B) = P(A∩B) / P(B) • Independent Events — Multiply probabilities across multiple events • Dependent Events — P(A∩B) = P(A) × P(B|A) • Venn Diagram Calculator — Input P(A) and P(B), instantly get P(A∩B), P(A∪B), P(A XOR B), and occurrence probabilities over N trials — complete with visual Venn diagram • Custom Calculator — Enter values as fractions, decimals, or percentages - STATISTICAL DISTRIBUTIONS - • Binomial Distribution — P(X=k), mean, variance, and standard deviation • Normal Distribution — P(a ≤ X ≤ b) with z-score computation and CDF • Poisson Distribution — P(X=k) with λ parameter, mean, and variance -RANDOM EXPERIMENT SIMULATOR - Roll dice, flip coins, and draw cards — all with real probability charts: • Dice: D4, D6, D8, D10, D12, D20 (roll up to 6 at once) • Coins: Flip 1–10 coins simultaneously • Cards: Draw from a standard 52-card deck • Live frequency chart updates with every trial - STEP-BY-STEP SOLUTIONS - Every calculation shows the full working — formula, substitution, and result. Perfect for checking homework, preparing for exams, or learning how probability really works. - CALCULATION HISTORY - Every result is automatically saved. Search, review, and copy any previous calculation. Swipe to delete. Tap for full detail with all steps. -REFERENCE GUIDE - Built-in reference includes: • Complete probability and distribution formulas • Standard Normal Z-table (z = −3.0 to +3.0) • Interactive combinations C(n,r) and permutations P(n,r) calculator - DESIGNED FOR EVERYONE - Clean, distraction-free interface with full Dark Mode support. Tap any result to copy it instantly. Works on iPhone and iPad. No ads. No subscriptions. No internet required. Perfect for: • High school and university statistics courses • AP Statistics, IB Math, A-Level, SAT/ACT prep • College probability and statistics classes • Teachers preparing lessons and examples • Data analysts and business professionals Probability is the measure of the likelihood that an event will occur. Probability is quantified as a number between 0 and 1, where, loosely speaking, 0 indicates impossibility and 1 indicates certainty. Summary of probabilities: Probability that both the events occur P(A ∩ B) = P(A) x P(B). Probability that either of event occurs P(A U B) = P(A) + P(B) - P(A ∩ B). Conditional Probability P(A | B) = P(A ∩ B) / P(B). Conditional Probability P(B | A) = P(A ∩ B) / P(A). Exclusive OR of A and B P(A XOR B) = P(A) + P(B) - 2 X P(A ∩ B). Probability theory is used widely in such areas of study as mathematics, statistics, finance, gambling, science (in particular physics), artificial intelligence/machine learning, computer science, game theory, and philosophy to, for example, draw inferences about the expected frequency of events. Probability theory is applied in everyday life in risk assessment and modeling. The insurance industry and markets use actuarial science to determine pricing and make trading decisions. Governments apply probabilistic methods in environmental regulation, entitlement analysis (Reliability theory of aging and longevity), and financial regulation. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

LEXephant is the ultimate AI companion app for foreign language learners. Add all the words and phrases you need to learn : * Add phrases by dictating with in-built speech to text. * Add phrases using your camera with in-built character recognition. * Pasting in phrases from anywhere . * Bidirectional AI quality translation. * Automatic high-quality AI-generated audio pronunciation for all your phrases. * AI phrase analysis including grammatical decompositions. * Thousands of example phrases included for 14 languages. The learn and review your phrases on the go. And share your phrases (with audio) on social media. Native support for 14 language - Arabic, Brazilian, Chinese, Dutch, French, German, Italian, Japanese, Korean, Portuguese, Russian, Spanish, Swedish, and Turkish. * To start, select a language and add your words and phrases. -- Add them by typing, pasting, dictating or scanning photographs. * As you add words/phrases, they will appear in the table of items along with an AI-generated audio pronunciation. Just tap a item to hear its pronunciation. * Long-press on any item to get an AI analysis in meaning sublties, grammatical decomposition and cultural context. * You can swipe review all your words & phrases by tapping the blue 'down' button. And then keeping swiping to the left to learn and memorize your words and phrases. More app features include: * Automatic high quality audio for your word and phrases. * Built in AI translation into English for meanings. * AI analysis of your phrases including word-by-word grammatical decomposition. * Add words/phrases from your camera or photos with built-in text recognition. * Swipe review you word/phrases, pronunciations and meanings. * Share your items on social media as an image or video (with sound). The app includes paid subscriptions to unlock all the features. Our privacy policy can be found here: https://www.lexephant.com/privacy.html And our Terms and Conditions (EULA) can be found here: https://www.lexephant.com/terms-and-conditions.html We hope you find LEXephant a useful tool. We'd love to hear any feedback or suggestions you might have about we can make it even more useful. Enjoy-aphant!