MATHEMATICS

  1. Is the number of the text book authors now sitting at a computer discrete or continous

 

  • The random variable is continous?
  • The random variable is discrete?

     

 

  1. Is the number of people with blood type A in a random sample of 22 people discrete or continous

 

  • The randome variable is continous.
  • The randomn variable is discrete.

     

 

  1. Is the number of people in the restaurant that has the capacity of 250 discrete or continous?

     

 

  • The random variable is continous.
  • The random variable is discrete.

     

 

  1. Is the weight of a T-bone steak discrete or continous.

 

  • The random variable is continous.
  • The random variable is discrete.

 

  1. Is height of randomly selected giraffe discrete or continous?

 

  • The random variable is continous.
  • The random variable is discrete.

 

 

 

  1. Determine whether the distribution is a discrete probability  distribution

     

 

X P(X)
0 0.16
1 0.21
2 0.26
3 0.21
4 0.16

 

 

 

 

 

Is the distribution is discrete probabilty distribution? Why?

 

 

 

CHOOSE CORRECT ANSWER.

 

 

 

  1. No because some of the probability have value greater than 1 less than 0
  2. Yes because the probability sum to 1 and are all between 0 and 1, inclusive.
  3. Yes because the distribution is symetric
  4. No because the total probabilty is not equal to 1.

 

 

 

 

 

  1. A frequently distribution below. Complete A through E

     

 

  1. Use the frequently distribution to construct a probability distribution.

     

 

X P(X)
0 ?
1 ?
2 ?
3 ?
4 ?
5 ?
6 ?

 

 

 

 

 

 

 

  1. Find the mean of the probabilty distribution

    Means= …..                 (round nearest tenth as needed )

     

  2. Find the variable of probabilty distribution

     

    02=

     

 

 

 

 

  1. Determine which of the following could not represent the probability of an event.

    A= 0

    B= 0.009

    C= 550/1259

    E= 50%

    F= -0.7

     

  2. You randomly selected one card from a standard desk.

    Event A is selecting a five. Determine the # of outcomes in event A. Then decide whether the event is a simple or not?

    The number of outcomes in the event is ?

    IS event A simple Event?

    Yes or No?

     

  3. Use the bar graph below, which shows the highest level of education received by employees of a company, to find the probability that the highest level of education for an employee a Random is B.

    __Must insert  Data

     

    A =8

    B= 26

    C= 33

    D= 17

    E= 7

    F= 13

     

    The probability that the highest level of education for an employee chosen at random is B is?

     

  4. Determine whether the Events E & F are Dependent

    Justify your answer.

     

 

  1. E: A  person having a high GPA

    F: A person being highly organized

     

    Chose the correct one:

     

 

  1. E & F: are dependent because having a high GPA has no effect on the probability of a person being highly organized.
  2. E & f: are independent because highly organized has no effec on the probability of a person having a high GPA

 

 

 

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