Mathematics
Probability and Statistics
Probability and statistics here has two topics. Introduction to Probability, for grade 10, goes from writing out a sample space to tree diagrams, conditional probability and independent events. Statistics and Inference, a first-year university course, asks how a claim about a population is drawn from a sample, and how much of that claim the sample can support. Lessi, an AI teacher, teaches both live.
- Topics
- 14
- Ages
- Grade 10 – Grade 11
Areas of Mathematics
Topics in Probability and Statistics1–14 of 14
- What is a sample space in probability?A sample space is the complete set of all possible outcomes of a random experiment, where each outcome appears exactly once. An event is any subset of that sample space,…Read the topic
- How do you find a probability when every outcome is equally likely?When every outcome in a sample space is equally likely, find the probability of an event by dividing the number of favorable outcomes by the total number of possible…Read the topic
- What is the addition rule in probability?The addition rule states that the probability of event A or event B occurring equals the sum of their individual probabilities minus the probability that both occur…Read the topic
- How do you use a tree diagram for a two stage experiment?To use a tree diagram for a two stage experiment, draw branches from a starting point for each outcome of the first stage, then draw new branches from each tip for the…Read the topic
- How do you calculate conditional probability?To calculate a conditional probability, divide the probability of both events happening together (the intersection) by the probability of the given condition: P(A|B) =…Read the topic
- When are two events independent?Two events are independent when the occurrence of one does not change the probability of the other. Mathematically, event A and event B are independent if and only if P(A…Read the topic
- How do you use the multiplication principle of counting?To use the multiplication principle of counting, break a process into separate stages and multiply the number of possibilities for each stage. If stage one has m options…Read the topic
- How to calculate expected value?You calculate expected value by multiplying each possible outcome value by its probability of occurring, then adding all of these products together. The resulting number…Read the topic
- How to find the mean of grouped data?To find the mean of grouped data, calculate the midpoint of each class interval by adding the lower and upper limits and dividing by two. Multiply each midpoint by its…Read the topic
- How to find median mode and quartiles?To find the median, mode, and quartiles, start by arranging your data from least to greatest. The mode is the most frequent value. The median is the middle number, or the…Read the topic
- How to calculate variance and standard deviation?You calculate variance by finding the mean of your data set, squaring each point's difference from that mean, summing those squares, and dividing by the data point count…Read the topic
- How to calculate binomial probability?You calculate a binomial probability using the formula P(X = k) = nCk * p^k * (1 - p)^(n - k). First, identify your fixed number of trials n, the number of successes k,…Read the topic
- What percentage falls within 1, 2, and 3 standard deviations of the mean?In any normal distribution, approximately 68% of data falls within one standard deviation of the mean, about 95% falls within two standard deviations, and roughly 99.7%…Read the topic
- How to compare test scores using z scores?You can compare test scores from different exams by calculating each result's z score with the formula z = (x - mean) / standard deviation. This value measures how many…Read the topic
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Private teachers for Statistics
Teachers on Lessoons, online or face to face. Each profile opens on the Lessoons site.
יוחאי אStatistics teacherרמת גןסטטיסטיקאי ומוסמך MBA מסייע בעיבודים סטטיסטיים ומעביר שיעורים פרטיים (ליחיד או לקבוצות קטנות).Full profile
נועה טלStatistics teacher₪130 / hourתל אביב -יפומורה פרטית לביולוגיה, מתמטיקה ומדעי המחשב. BSc בביולוגיה ומדעי המחשב + MSc בהנדסה (אונ׳ תל אביב)Full profile
חן זליגStatistics teacher₪180 / hourראשון לציוןמהנדס בעל תואר שני ומורה למתמטיקה ופסיכומטרי עם ניסיון של 15 שנים והרבה אהבה ללימוד והדרכה.Full profile
דני יעקבStatistics teacher₪176 / hourרמת גןמורה פרטי מעולה, בעל ניסיון כמתרגל, מנחה קבוצות ומרצה. מקצועי, סבלני, יסודי. קרוב ל 15 אלף שעות ניסיון בהוראה. ברמת-גן וגם בזום (zoom)Full profile
ספיר פאבלוקסStatistics teacher₪200 / hourפתח תקווהרוצים להצליח? שלחו הודעה עכשיו! אני ספיר, בעלת נסיון רב בהוראה פרטית. בשיעורים נעבוד על יצירת בטחון עצמי ופתיחות ללמוד, להבין ולהנות מהחומרFull profile
אור שחר Academax כתיבת עבודות בלבדStatistics teacher₪199 / hourתל אביב -יפוסיוע בכתיבה לכל עבודה סוג של עבודה אקדמית - סמינריונית, תזה או דוקטורט. 10 שנות ניסיון עם סטודנטים מכל המוסדות בארץ, צוות כותבים שנותן מענה כמעט בכל מקצוע ויחס אישי לכל עבודה - איכות ללא תחרות!Full profile
מאור ביטוןStatistics teacher₪240 / hourכרמיאלמלמד, מסייע בעבודות ומלווה אתכם בדרך להצלחה! הפשטות וההבנה מנצחות – בהתחייבות. סיוע בעבודות, ליווי אישי או קבוצתי בלימודים, הכנה לבחינות ולמטלות, עם דגש על הבנה אמיתית של החומר והצלחה בפועל.Full profile
יעקב אברמסStatistics teacher₪180 / hourירושליםמורה למדעי המחשב עם הרבה נסיון וסבלנות, בעל יחס אישי וחם. אצלי תצאו עם הבנה מצויינת של החומר!Full profile
About Probability and Statistics
Probability starts by listing everything that could happen and counting the part you care about. The grade 10 course moves from classical probability and the complementary event to unions and intersections, two-stage experiments, conditional probability and independence. The university course picks up from there: random variables, expectation and variance, the sampling distribution, and what a sample can and cannot say about the population it came from.
Data also appears elsewhere on the site: grade 9 Data and Statistics sits under computing, and the math bagrut courses include their own probability. Here, Lessi explains each idea on a board and out loud, with a short quiz after each step. The first 60 minutes are free with an account.