- +1-530-264-8006
- info@tutorsglobe.com

Determine the standard deviation

Let x be a random variable that represents the number of students who are absent on a given day from a class of 25. The following table lists the probability distribution of x.

X | P(X) |

0 | 0.08 |

1 | 0.18 |

2 | 0.32 |

3 | 0.22 |

4 | 0.14 |

5 | 0.06 |

a) Determine the following probabilities:

p(x = 4), p( x > 4), p ( 2 < x < than 4), and p( x greater than 1).

b)Determine the expected number of absent students on a given day.

c) Compute the variance of x by the definition.

d) Compute the variance of x by the short cut formula.

e) Determine the standard deviation of x

Expected delivery within 24 Hoursrs

18,76,764

Questions

Asked

21,311

Experts

9,67,568

Questions

Answered

Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!

Submit Assignment
## Q : Confidence interval for corresponding population proportion

For the following find the appropriate 95% confidence interval for the corresponding population proportion: