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  • Slide # 1

    Slide # 1

    Far far away, behind the word mountains, far from the countries Vokalia and Consonantia, there live the blind texts Read More

    Slide # 2

    Slide # 2

    Far far away, behind the word mountains, far from the countries Vokalia and Consonantia, there live the blind texts Read More

    Slide # 3

    Slide # 3

    Far far away, behind the word mountains, far from the countries Vokalia and Consonantia, there live the blind texts Read More

    Slide # 4

    Slide # 4

    Far far away, behind the word mountains, far from the countries Vokalia and Consonantia, there live the blind texts Read More

    Slide # 5

    Slide # 5

    Far far away, behind the word mountains, far from the countries Vokalia and Consonantia, there live the blind texts Read More

     
  • Student Affairs
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  • Exercise Chp Normal Distribution

    A set of final examination grades in an introductory statistics course is normally distributed, with a mean of 73 and a standard deviation of 8.

    a.What is the probability of getting a grade below 91 on this exam?

    b.What is the probability that a student scored between 65 and 89?

    c.The probability is 5% that a student taking the test scores higher than what grade?

    d.If the professor grades on a curve (that is, gives As to the top 10% of the class, regardless  of the score), are you better off with a grade of 81 on this exam or a grade of 68 on a different exam, where the mean is 62 and the standard deviation is 3? Show your answer statistically and explain.

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