Current location - Training Enrollment Network - Mathematics courses - Explain the probability problem of high school mathematics. The first question is how to do it Explain step by step in a liberal arts way. Thank you, great god have
Explain the probability problem of high school mathematics. The first question is how to do it Explain step by step in a liberal arts way. Thank you, great god have
Solution: All possible values of x are: 16, 17, 18,19,20,2122.

p(X = 16)= 20/ 100 * 20/ 100 = 0.04

p(X = 17)= 2 * 0.2 * 0.4 = 0. 16

p(X = 18)= 0.4 * 0.4+2 * 0.2 * 0.2 = 0.24

p(X = 19)= 2 * 0.4 * 0.2+2 * 0.2 * 0.2 = 0.24

P(X=20)=0.2*0.2+2*0.4*0.2=0.20

P(X=2 1)=2*0.2*0.2=0.08

P(X=22)=0.2*0.2=0.04

The distribution list of x is:

│X│ 16 | 17 | 18 | 19 | 20

│P│0.04 | 0. 16 | 0.24 | 0.24 | 0.20

| 2 1 | 22 |

|0.08|0.04|

Related articles
  • What are the basic requirements of excellent mathematics teaching design?
  • Distribution of majors in Fujian Normal University campus
  • Content of blackboard newspaper in reading festival
  • What should I do if I don't do well in the first math test in senior one?
  • What does the high number dx, dy mean?
  • Comments on Comprehensive Quality Evaluation of Senior Three Teachers
  • What does sgn mean? In mathematics,
  • 20 1 1 year Ningbo senior high school entrance examination mathematics
  • The first volume of the fourth grade Unit 2 How to draw a mathematical mind map
  • What does the first divination limit mean?

    • copyright 2024 Training Enrollment Network All rights reserved