إسأل معلم الرياضيات الآن
مصطفى حسين
معلم الرياضيات
الأسئلة المجابة 43822 | نسبة الرضا 98.6%
علم الرياضيات
High School Dropouts Approximately 10.3% of...
High School Dropouts Approximately 10.3% of American high school students drop out of school before graduation. Choose 10 students entering high school at random. Find the probability that a. No more than two drop out 0.925 b. At least 6 graduate 0.998 c. All 10 stay in school and graduate 0.337 Source
إطرح سؤالك
إجابة الخبير: مصطفى حسين
مصطفى حسين
معلم الرياضيات
الأسئلة المجابة 43822 | نسبة الرضا 98.6%
Probability of 0 drop outs is .897^10=0.3372
drop out is 10*.103*.897^9=0.3872
drop outs is 45 (10C2)*.103^2*.897^8=0.2001
That sum is 0.9245
So probability no more than 2 drop out in the sample is 0.9245
for 3 it is 120*.103^3*.897^7=0.0613
for 4 it is 210*.103^4*.897^6=0.0123. This is 6 graduating
The probability of 0-4 dropouts, which is at least 6 not dropping out is 0.9981.
The expected value is about 1 and the sd is about 0.95
All 10 stay in school and graduate 0.337
drop out is 10*.103*.897^9=0.3872
drop outs is 45 (10C2)*.103^2*.897^8=0.2001
That sum is 0.9245
So probability no more than 2 drop out in the sample is 0.9245
for 3 it is 120*.103^3*.897^7=0.0613
for 4 it is 210*.103^4*.897^6=0.0123. This is 6 graduating
The probability of 0-4 dropouts, which is at least 6 not dropping out is 0.9981.
The expected value is about 1 and the sd is about 0.95
All 10 stay in school and graduate 0.337
إسأل معلم الرياضيات
مصطفى حسين
معلم الرياضيات
الأسئلة المجابة 43822 | نسبة الرضا 98.6%
- 100% ضمان الرضا
- انضم الى 8 مليون من العملاء الراضين
المحادثات تتم ضمن هذه البنود
