תפריט ניווט
דף הבית
מתמטיקה
אנגלית
עברית
העשרה
לשון
מיצ"ב
אתגרים
הכנה לכיתה א׳
זהירות בדרכים
מבחנים
הירשם/י
בחר/י מנוי
בחר/י מנוי
כניסה
התחבר/י באמצעות
התחבר/י באמצעות פייסבוק
- או -
כתובת דוא"ל או כינוי
סיסמה
שכחת את סיסמתך?
כניסה
חדש/ה כאן?
הירשם/י עכשיו
צור קשר
תרגול במתמטיקה
גן חובה
כיתה א'
כיתה ב'
כיתה ג'
כיתה ד'
כיתה ה'
כיתה ו'
כיתה ז'
כיתה ח'
כיתה ט'
בית ספר תיכון
הכנה לבגרות 801
הכנה לבגרות 802 (שאלון 381)
הכנה לבגרות 803 (שאלון 382)
הכנה לבגרות 804 (שאלון 481)
הכנה לבגרות 805 (שאלון 482)
דף הבית
תרגול במתמטיקה
הסתברות
הסתברות
אנו מצטערים, אבל Javascript חייב להיות מופעל בדפדפן שלך כדי להציג את אתר זה כמו שצריך.
אנא הפעל Javascript בדפדפנך.
חזור לרשימת נושאים
התחל לתרגל
חזור לרשימת נושאים
התחל לתרגל
תרגילים לדוגמא
ענו על השאלה הבאה:
בכד יש 5 כדורים כחולים , 13 כדורים אפורים ו-13 כדורים כתומים .
מוציאים באקראי כדור מהכד .
מהי ההסתברות שיצא כדור אפור ?
\[\begin{aligned} p(\text{הוצאת כדור אפור}) = \frac{\INPUTBOX{1}{ltr}{13}}{\INPUTBOX{2}{ltr}{31}} \end{aligned}\]
ענו על השאלה הבאה:
לקובייה יש 6 פאות .
על כל פאה רשום מספר אחד מבין המספרים 1 עד 6 .
בהטלת הקובייה , מהי ההסתברות לקבל מספר נמוך מ-2 ?
\[\begin{aligned} p(\text{מספר נמוך מ-2}) = \frac{\INPUTBOX{1}{ltr}{1}}{\INPUTBOX{2}{ltr}{6}} \end{aligned}\]
ענו על השאלה הבאה:
לפניכם 19 כדורים.
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בוחרים באקראי כדור.
מהי ההסתברות לקבלת כדור שהוא לא אדום?
\[\begin{aligned} p(\text{כדור לא אדום}) = \frac{\INPUTBOX{1}{ltr}{14}}{\INPUTBOX{2}{ltr}{19}} \end{aligned}\]
ענו על השאלה הבאה:
לפניכם 5 צורות.
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בוחרים באקראי אחת מבין חמש הצורות.
מהי ההסתברות לקבלת משולש אדום?
\[\begin{aligned} p(\text{משולש אדום}) = \frac{\INPUTBOX{1}{ltr}{2}}{\INPUTBOX{2}{ltr}{5}} \end{aligned}\]
ענו על השאלה הבאה:
לפניכם 19 כדורים.
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בוחרים באקראי כדור.
מהי ההסתברות לקבלת כדור כחול?
\[\begin{aligned} p(\text{כדור כחול}) = \frac{\INPUTBOX{1}{ltr}{8}}{\INPUTBOX{2}{ltr}{19}} \end{aligned}\]
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